As the bells tolled many a tear shed in memory of a sorrowful day.
Fourteen years ago on September 11, several terrorists hijacked four passenger planes and drove two into New York City's World Trade Center and a third one into the Pentagon outside Washington.
A fourth jetliner crashed onto an empty field in Pennsylvania.
In the end, the terrorists had killed nearly 3,000 people in what was to be the deadliest terrorist attack on American soil.
On Friday, a resilient nation looked to the future while reminiscing about the days gone by.
US President Barack Obama and First Lady Michelle today led Americans in observing the 14th anniversary of the terrorist attacks on September 11, 2001.
In New York, police and relatives of those killed at the WTC began the annual reading of names of victims at Ground Zero, the present site of the National 9/11 Memorial and Museum.
At 8.46 am, precisely 14 years after American Airlines Flight 11 flown by Al-Qaeda terrorists smashed into the North Tower of the WTC with a force that would be heard across the world, there was silence on the South Lawn of the White House.
Obama stood, head bowed, along with his wife and senior staffers including his Chief of Staff Denis McDonough, National Security Advisor Susan Rice and spokesman Josh Earnest.
The flag atop the White House fluttered at half-staff.
When the President and First Lady emerged, they walked silently and somberly along the aisle, halting just short of the bugler off to their right as four bells tolled.
Heads bowed, the President and First Lady looked down for the moment of silence, the silence pierced only by plane noises and the sounds of camera drives clicking.
A boy places his hand on a man's shoulder during a ceremony marking the 14th anniversary of the 9/11 attacks, at the National September 11 Memorial and Museum in Lower Manhattan in New York. Photograph: Andrew Kelly/ Reuters
They then looked up and placed their hands over their hearts as the 'Taps' tune was played.
At the WTC, where most of the victims were, bagpipers and drummers provided solemn tunes to accompany a ceremony in which people read the names of the dead.
Moments of silence were observed at the specific times when the planes struck.
The attacks killed nearly 3,000 people when four hijacked airliners crashed into the WTC twin towers, the Pentagon in Washington, and in a field in Pennsylvania.
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