The World War l Unknown is below the marble coffin. Other Unknowns are beneath the white slabs on the ground to the left of the guard.  

The remains of the Unknown Soldier are committed to the ground during
the burial services of 1921.

The Tomb of the Unknowns (or Tomb of the Unknown Soldier as it is often called) is  
a monument dedicated to U.S. Service members who have died without their remains being identified. It is located in Arlington National Cemetery in Virginia. On November
11, 1921, President Warren G. Harding officiated the interment ceremonies at the Cemetery. The Tomb of the Unknowns has been continuously guarded, 24 hours
a day, 7 days a week, since July 2, 1937.

From left: Gemini Pilots Buzz Aldrin and Jim Lovell

The Gemini 12 mission was a manned spaceflight launched on November 11,
1966 as the concluding mission of NASA’s Gemini program. The objectives
were to dock with the Agena target vehicle and conduct three spacewalks. The
mission included conducting 14 scientific experiments and taking pictures of  
the total eclipse over South America. Gemini 12 returned to earth on the 15th
of November.

Navy Frog Men securing the floatation collar to the spacecraft after
splashdown

Gemini-12 pilot Buzz Aldrin is hoisted into the recovery helicopter

James A. Lovell Jr. (center), command pilot, and Edwin E. Aldrin Jr. (right),  
pilot, receive Official welcome as they arrive aboard the aircraft carrier
U.S.S. Wasp after their splashdown.

Mothers of two Marines who lost their lives after helping to raise the flag
on Mt. Suribachi pose with and Vice President Nixon (center) in front of
the Iwo Jima monument.  

The Marine Corps War Memorial (also called the Iwo Jima Memorial) is a military
statue located outside the walls of the Arlington National Cemetery in Arlington,
Virginia. The memorial was officially dedicated to all personnel of the U.S. Marine
Corps by President Dwight D. Eisenhower on November 10, 1954, which at the
time was the 179th anniversary of the Marine Corps.  

                                (10 November 1775 – present)