Many of us still remember where we were when we heard that America was under attack on Sept. 11, 2001.
Take a look at a timeline of events of that day and those that followed as a nation mourned and stood together, saying “Never Forget.”
22nd anniversary of 9/11 ARLINGTON, VIRGINIA - SEPTEMBER 11: A rose is placed on a bench at the National 9/11 Pentagon Memorial during a ceremony observing the 9/11 terrorist attacks at the Pentagon on September 11, 2023 in Arlington, Virginia. The Defense Department held a remembrance ceremony for the 184 lives lost in the 2001 terrorist attack on the Pentagon. Today marks the 22nd anniversary of September 11, 2001 terrorist attacks at the World Trade Center, the Pentagon and Shanksville, Pennsylvania. (Photo by Win McNamee/Getty Images) (Win McNamee/Getty Images)
22nd anniversary of 9/11 ARLINGTON, VIRGINIA - SEPTEMBER 11: First responders watch as an American flag is unfurled during a ceremony observing the 9/11 terrorist attacks at the Pentagon on September 11, 2023 in Arlington, Virginia. The Defense Department held a remembrance ceremony for the 184 lives lost in the 2001 terrorist attack on the Pentagon. Today marks the 22nd anniversary of September 11, 2001 terrorist attacks at the World Trade Center, the Pentagon and Shanksville, Pennsylvania. (Photo by Win McNamee/Getty Images) (Win McNamee/Getty Images)
22nd anniversary of 9/11 ARLINGTON, VIRGINIA - SEPTEMBER 11: A first responders watches as an American flag is unfurled during a ceremony observing the 9/11 terrorist attacks at the Pentagon on September 11, 2023 in Arlington, Virginia. The Defense Department held a remembrance ceremony for the 184 lives lost in the 2001 terrorist attack on the Pentagon. Today marks the 22nd anniversary of September 11, 2001 terrorist attacks at the World Trade Center, the Pentagon and Shanksville, Pennsylvania. (Photo by Win McNamee/Getty Images) (Win McNamee/Getty Images)
22nd Anniversary Of 9/11 NEW YORK, NEW YORK - SEPTEMBER 10: People visit the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan as the nation prepares to commemorate the 22nd anniversary of the attacks on September 10, 2023 in New York City. Monday will mark the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
22nd Anniversary Of 9/11 NEW YORK, NEW YORK - SEPTEMBER 10: People walk through the Westfield World Trade Center, also known as the Oculus, near the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan as the nation prepares to commemorate the 22nd anniversary of the attacks on September 10, 2023 in New York City. Monday will mark the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
22nd Anniversary Of 9/11 NEW YORK, NEW YORK - SEPTEMBER 10: A woman mourns by a name at the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan as the nation prepares to commemorate the 22nd anniversary of the attacks on September 10, 2023 in New York City. Monday will mark the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
22nd Anniversary Of 9/11 NEW YORK, NEW YORK - SEPTEMBER 10: People visit the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan as the nation prepares to commemorate the 22nd anniversary of the attacks on September 10, 2023 in New York City. Monday will mark the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
22nd Anniversary Of 9/11 NEW YORK, NEW YORK - SEPTEMBER 10: People visit the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan as the nation prepares to commemorate the 22nd anniversary of the attacks on September 10, 2023 in New York City. Monday will mark the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
22nd Anniversary Of 9/11 NEW YORK, NEW YORK - SEPTEMBER 10: People visit the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan as the nation prepares to commemorate the 22nd anniversary of the attacks on September 10, 2023 in New York City. Monday will mark the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
22nd Anniversary Of 9/11 NEW YORK, NEW YORK - SEPTEMBER 10: People visit the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan as the nation prepares to commemorate the 22nd anniversary of the attacks on September 10, 2023 in New York City. Monday will mark the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
22nd Anniversary Of 9/11 NEW YORK, NEW YORK - SEPTEMBER 10: People visit the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan as the nation prepares to commemorate the 22nd anniversary of the attacks on September 10, 2023 in New York City. Monday will mark the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
9/11 anniversary NEW YORK, NEW YORK - SEPTEMBER 11: People visit the 9/11 Memorial at the Ground Zero site in lower Manhattan as the nation commemorates the 22nd anniversary of the attacks on September 11, 2023 in New York City. Monday marks the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
9/11 anniversary ARLINGTON, VIRGINIA - SEPTEMBER 11: Family members of victims visit the National 9/11 Pentagon Memorial during a ceremony observing the 9/11 terrorist attacks at the Pentagon on September 11, 2023 in Arlington, Virginia. The Defense Department held a remembrance ceremony for the 184 lives lost in the 2001 terrorist attack on the Pentagon. Today marks the 22nd anniversary of September 11, 2001 terrorist attacks at the World Trade Center, the Pentagon and Shanksville, Pennsylvania. (Photo by Win McNamee/Getty Images) (Win McNamee/Getty Images)
9/11 anniversary ARLINGTON, VIRGINIA - SEPTEMBER 11: U.S. Secretary of Defense Lloyd Austin participates in a wreath laying ceremony during a ceremony observing the 9/11 terrorist attacks at the Pentagon on September 11, 2023 in Arlington, Virginia. The Defense Department held a remembrance ceremony for the 184 lives lost in the 2001 terrorist attack on the Pentagon. Today marks the 22nd anniversary of September 11, 2001 terrorist attacks at the World Trade Center, the Pentagon and Shanksville, Pennsylvania. (Photo by Win McNamee/Getty Images) (Win McNamee/Getty Images)
9/11 anniversary ARLINGTON, VIRGINIA - SEPTEMBER 11: Family members of victims visit the National 9/11 Pentagon Memorial during a ceremony observing the 9/11 terrorist attacks at the Pentagon on September 11, 2023 in Arlington, Virginia. The Defense Department held a remembrance ceremony for the 184 lives lost in the 2001 terrorist attack on the Pentagon. Today marks the 22nd anniversary of September 11, 2001 terrorist attacks at the World Trade Center, the Pentagon and Shanksville, Pennsylvania. (Photo by Win McNamee/Getty Images) (Win McNamee/Getty Images)
9/11 anniversary ARLINGTON, VIRGINIA - SEPTEMBER 11: Family members of victims visit the National 9/11 Pentagon Memorial during a ceremony observing the 9/11 terrorist attacks at the Pentagon on September 11, 2023 in Arlington, Virginia. The Defense Department held a remembrance ceremony for the 184 lives lost in the 2001 terrorist attack on the Pentagon. Today marks the 22nd anniversary of September 11, 2001 terrorist attacks at the World Trade Center, the Pentagon and Shanksville, Pennsylvania. (Photo by Win McNamee/Getty Images) (Win McNamee/Getty Images)
9/11 anniversary ARLINGTON, VIRGINIA - SEPTEMBER 11: Family members of victims visit the National 9/11 Pentagon Memorial during a ceremony observing the 9/11 terrorist attacks at the Pentagon on September 11, 2023 in Arlington, Virginia. The Defense Department held a remembrance ceremony for the 184 lives lost in the 2001 terrorist attack on the Pentagon. Today marks the 22nd anniversary of September 11, 2001 terrorist attacks at the World Trade Center, the Pentagon and Shanksville, Pennsylvania. (Photo by Win McNamee/Getty Images) (Win McNamee/Getty Images)
9/11 anniversary ARLINGTON, VIRGINIA - SEPTEMBER 11: Victim's names are seen in a program during a ceremony observing the 9/11 terrorist attacks at the Pentagon on September 11, 2023 in Arlington, Virginia. The Defense Department held a remembrance ceremony for the 184 lives lost in the 2001 terrorist attack on the Pentagon. Today marks the 22nd anniversary of the September 11, 2001 terrorist attacks at the World Trade Center, the Pentagon and Shanksville, Pennsylvania. (Photo by Win McNamee/Getty Images) (Win McNamee/Getty Images)
9/11 anniversary NEW YORK, NEW YORK - SEPTEMBER 11: Former New York City mayor Rudy Giuliani attends services at the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan as the nation commemorates the 22nd anniversary of the attacks on September 11, 2023 in New York City. Monday marks the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
9/11 anniversary WASHINGTON, DC - SEPTEMBER 11: A jogger runs past American flags flying at half staff around the Washington Monument on the National Mall on September 11, 2023 in Washington, DC. U.S. Leaders are observing the 22nd anniversary of the terror attacks around the country with first lady Jill Biden attending a ceremony at the National 9/11 Pentagon Memorial and U.S. President Joe Biden speaking to service members in Alaska. (Photo by Anna Moneymaker/Getty Images) (Anna Moneymaker/Getty Images)
9/11 anniversary ARLINGTON, VIRGINIA - SEPTEMBER 11: A man wearing a firefighter's uniform visits the National 9/11 Pentagon Memorial during a ceremony observing the 9/11 terrorist attacks at the Pentagon on September 11, 2023 in Arlington, Virginia. The Defense Department held a remembrance ceremony for the 184 lives lost in the 2001 terrorist attack on the Pentagon. Today marks the 22nd anniversary of September 11, 2001 terrorist attacks at the World Trade Center, the Pentagon and Shanksville, Pennsylvania. (Photo by Win McNamee/Getty Images) (Win McNamee/Getty Images)
9/11 anniversary NEW YORK, NEW YORK - SEPTEMBER 11: Family, politicians, police, firefighters and others pay their respects as they visit the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan for commemoration ceremonies during the 22nd anniversary of the attacks on September 11, 2023 in New York City. Monday marks the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
9/11 anniversary NEW YORK, NEW YORK - SEPTEMBER 11: Firefighters and members of the police take part in the ceremony at the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan during commemoration ceremonies for the 22nd anniversary of the attacks on September 11, 2023 in New York City. Monday marks the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
9/11 anniversary NEW YORK, NEW YORK - SEPTEMBER 11: Family, politicians, police, firefighters and others pay their respects as they visit the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan for commemoration ceremonies during the 22nd anniversary of the attacks on September 11, 2023 in New York City. Monday marks the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
9/11 anniversary ARLINGTON, VIRGINIA - SEPTEMBER 11: A detail of a wreath as U.S. Secretary of Defense Lloyd Austin (not pictured) participates in a wreath laying ceremony during a ceremony observing the 9/11 terrorist attacks at the Pentagon on September 11, 2023 in Arlington, Virginia. The Defense Department held a remembrance ceremony for the 184 lives lost in the 2001 terrorist attack on the Pentagon. Today marks the 22nd anniversary of September 11, 2001 terrorist attacks at the World Trade Center, the Pentagon and Shanksville, Pennsylvania. (Photo by Win McNamee/Getty Images) (Win McNamee/Getty Images)
9/11 anniversary NEW YORK, NEW YORK - SEPTEMBER 11: Former New York City Mayor Michael Bloomberg stands with Vice President Kamala Harris (center) and New York Governor Kathy Hochul as they attend services at the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan as the nation commemorates the 22nd anniversary of the attacks on September 11, 2023 in New York City. Monday marks the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
9/11 anniversary ARLINGTON, VIRGINIA - SEPTEMBER 11: A detail of a wreath as U.S. Secretary of Defense Lloyd Austin (not pictured) participates in a wreath laying ceremony during a ceremony observing the 9/11 terrorist attacks at the Pentagon on September 11, 2023 in Arlington, Virginia. The Defense Department held a remembrance ceremony for the 184 lives lost in the 2001 terrorist attack on the Pentagon. Today marks the 22nd anniversary of September 11, 2001 terrorist attacks at the World Trade Center, the Pentagon and Shanksville, Pennsylvania. (Photo by Win McNamee/Getty Images) (Win McNamee/Getty Images)
9/11 anniversary NEW YORK, NEW YORK - SEPTEMBER 11: Firefighters and members of the police take part in the ceremony at the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan during commemoration ceremonies for the 22nd anniversary of the attacks on September 11, 2023 in New York City. Monday marks the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
9/11 anniversary ARLINGTON, VIRGINIA - SEPTEMBER 11: Members of the Navy participate in a moment of silence during a ceremony observing the 9/11 terrorist attacks at the Pentagon on September 11, 2023 in Arlington, Virginia. The Defense Department held a remembrance ceremony for the 184 lives lost in the 2001 terrorist attack on the Pentagon. Today marks the 22nd anniversary of the September 11, 2001 terrorist attacks at the World Trade Center, the Pentagon, and Shanksville, Pennsylvania. (Photo by Win McNamee/Getty Images) (Win McNamee/Getty Images)
9/11 anniversary WASHINGTON, DC - SEPTEMBER 11: A jogger carries the American flag as they run along the National Mall on September 11, 2023 in Washington, DC. U.S. Leaders are observing the 22nd anniversary of the 9/11 terrorist attacks around the country with first lady Jill Biden attending a ceremony at the National 9/11 Pentagon Memorial and U.S. President Joe Biden speaking to service members in Alaska. (Photo by Anna Moneymaker/Getty Images) (Anna Moneymaker/Getty Images)
9/11 Anniversary ARLINGTON, VIRGINIA - SEPTEMBER 11: Family members of victims attend a ceremony observing the 9/11 terrorist attacks at the Pentagon on September 11, 2023 in Arlington, Virginia. The Defense Department held a remembrance ceremony for the 184 lives lost in the 2001 terrorist attack on the Pentagon. Today marks the 22nd anniversary of September 11, 2001 terrorist attacks at the World Trade Center, the Pentagon and Shanksville, Pennsylvania. (Photo by Win McNamee/Getty Images) (Win McNamee/Getty Images)
9/11 Anniversary NEW YORK, NEW YORK - SEPTEMBER 11: Retired police officer Sam Pulia places flags on the names along the 9/11 Memorial at the Ground Zero site in lower Manhattan as the nation commemorates the 22nd anniversary of the attacks on September 11, 2023 in New York City. Monday marks the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
9/11 Anniversary NEW YORK, NEW YORK - SEPTEMBER 11: Police and firefighters visit the 9/11 Memorial at the Ground Zero site in lower Manhattan as the nation commemorates the 22nd anniversary of the attacks on September 11, 2023 in New York City. Monday marks the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
9/11 Anniversary NEW YORK, NEW YORK - SEPTEMBER 11: Diane walks with a picture of her former husband Michael Massaroli as eople visit the 9/11 Memorial at the Ground Zero site in lower Manhattan as the nation commemorates the 22nd anniversary of the attacks on September 11, 2023 in New York City. Monday marks the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
9/11 Anniversary NEW YORK, NEW YORK - SEPTEMBER 11: Retired police officer Sam Pulia places flags on the names along the 9/11 Memorial at the Ground Zero site in lower Manhattan as the nation commemorates the 22nd anniversary of the attacks on September 11, 2023 in New York City. Monday marks the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
9/11 Anniversary NEW YORK, NEW YORK - SEPTEMBER 11: Retired firefighter Vincent Forras holds an American Flag with the names of September 11 victims while at the 9/11 Memorial at the Ground Zero site in lower Manhattan as the nation commemorates the 22nd anniversary of the attacks on September 11, 2023 in New York City. Monday marks the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
22nd anniversary of 9/11 ARLINGTON, VIRGINIA - SEPTEMBER 11: A rose is placed on a bench at the National 9/11 Pentagon Memorial during a ceremony observing the 9/11 terrorist attacks at the Pentagon on September 11, 2023 in Arlington, Virginia. The Defense Department held a remembrance ceremony for the 184 lives lost in the 2001 terrorist attack on the Pentagon. Today marks the 22nd anniversary of September 11, 2001 terrorist attacks at the World Trade Center, the Pentagon and Shanksville, Pennsylvania. (Photo by Win McNamee/Getty Images) (Win McNamee/Getty Images)
22nd anniversary of 9/11 ARLINGTON, VIRGINIA - SEPTEMBER 11: First responders watch as an American flag is unfurled during a ceremony observing the 9/11 terrorist attacks at the Pentagon on September 11, 2023 in Arlington, Virginia. The Defense Department held a remembrance ceremony for the 184 lives lost in the 2001 terrorist attack on the Pentagon. Today marks the 22nd anniversary of September 11, 2001 terrorist attacks at the World Trade Center, the Pentagon and Shanksville, Pennsylvania. (Photo by Win McNamee/Getty Images) (Win McNamee/Getty Images)
22nd anniversary of 9/11 ARLINGTON, VIRGINIA - SEPTEMBER 11: A first responders watches as an American flag is unfurled during a ceremony observing the 9/11 terrorist attacks at the Pentagon on September 11, 2023 in Arlington, Virginia. The Defense Department held a remembrance ceremony for the 184 lives lost in the 2001 terrorist attack on the Pentagon. Today marks the 22nd anniversary of September 11, 2001 terrorist attacks at the World Trade Center, the Pentagon and Shanksville, Pennsylvania. (Photo by Win McNamee/Getty Images) (Win McNamee/Getty Images)
22nd Anniversary Of 9/11 NEW YORK, NEW YORK - SEPTEMBER 10: People visit the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan as the nation prepares to commemorate the 22nd anniversary of the attacks on September 10, 2023 in New York City. Monday will mark the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
22nd Anniversary Of 9/11 NEW YORK, NEW YORK - SEPTEMBER 10: People walk through the Westfield World Trade Center, also known as the Oculus, near the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan as the nation prepares to commemorate the 22nd anniversary of the attacks on September 10, 2023 in New York City. Monday will mark the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
22nd Anniversary Of 9/11 NEW YORK, NEW YORK - SEPTEMBER 10: A woman mourns by a name at the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan as the nation prepares to commemorate the 22nd anniversary of the attacks on September 10, 2023 in New York City. Monday will mark the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
22nd Anniversary Of 9/11 NEW YORK, NEW YORK - SEPTEMBER 10: People visit the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan as the nation prepares to commemorate the 22nd anniversary of the attacks on September 10, 2023 in New York City. Monday will mark the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
22nd Anniversary Of 9/11 NEW YORK, NEW YORK - SEPTEMBER 10: People visit the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan as the nation prepares to commemorate the 22nd anniversary of the attacks on September 10, 2023 in New York City. Monday will mark the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
22nd Anniversary Of 9/11 NEW YORK, NEW YORK - SEPTEMBER 10: People visit the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan as the nation prepares to commemorate the 22nd anniversary of the attacks on September 10, 2023 in New York City. Monday will mark the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
22nd Anniversary Of 9/11 NEW YORK, NEW YORK - SEPTEMBER 10: People visit the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan as the nation prepares to commemorate the 22nd anniversary of the attacks on September 10, 2023 in New York City. Monday will mark the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
22nd Anniversary Of 9/11 NEW YORK, NEW YORK - SEPTEMBER 10: People visit the 9/11 Memorial and Museum at the Ground Zero site in lower Manhattan as the nation prepares to commemorate the 22nd anniversary of the attacks on September 10, 2023 in New York City. Monday will mark the 22nd anniversary of the September 11 terrorist attacks on the World Trade Center and the Pentagon, as well as the crash of United Airlines Flight 93. In total, the attacks killed nearly 3,000 people and commenced a global war on terror which included American led conflicts in both Iraq and Afghanistan. (Photo by Spencer Platt/Getty Images) (Spencer Platt/Getty Images)
Many of us still remember where we were when we heard that America was under attack on Sept. 11, 2001.
Take a look at a timeline of events of that day and those that followed as a nation mourned and stood together, saying “Never Forget.”
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