Acts commemorating the 50th anniversary of President John F. Kennedy's assassination began in Washington Friday with an austere military ceremony beside his grave at Arlington National Cemetery.

A group of bagpipers, like those who played on the day of his funeral and those the president invited whenever possible to important dinners and presidential events, filled the silence of the cemetery where 300,000 members of the U.S. Armed Forces lie.

At 8:30 a.m. a floral tribute was placed at the grave in memory of Kennedy, shot to death by Lee Harvey Oswald in Dallas on Nov. 22, 1963.

Military and civilians began to arrive on this cold, grey Washington morning to pay tribute to the late president by the Eternal Flame that marks the place where he rests alongside his widow, Jacqueline Kennedy Onassis, who died in 1994.

Despite being in the White House for less than three years, Kennedy holds a special place in the memory of Americans of all ages.

Throughout the day, Washington will commemorate in various ways the 50th anniversary of Kennedy's death.

On Wednesday, President Barack Obama and first lady Michelle Obama and Bill and Hillary Clinton accompanied members of the Kennedy clan to JFK's gravesite in Arlington.

"John F. Kennedy stands for posterity as he did in life - young, and bold, and daring," President Obama said. EFE