Muhammad Ali knocks-out George Foreman in Kinshasa, Zaire, 1974

Winston Churchill painting at the Surf Club in 1946, Miami Beach, Florida @facethenation

American gymnast McKayla Maroney won a team gold medal and a silver medal for the vault at the 2012 Summer Olympics @facethenation

Wernher von Braun strolls on the Moon, or rather, an Apollo 11 landing site mockup at the 1969 South-Eastern Fair in Atlanta @facethenation

Actor and comedian Robin Williams died two year ago today, on August 11, 2014

Julia Roberts, Steven Spielberg and Robin Williams on the set of Hook, 1991 @facethenation

Andre Agassi and Roger Federer play tennis on the helipad of the Burj Al Arab hotel on February 22, 2005 @facethenation

Apollo 9 commander Jim McDivitt in the Apollo 9 Lunar Module, 1969 @facethenation

Fidel Castro playing baseball ⚾️, 1964 @facethenation

David Greenglass was an atomic spy 🕵 for the Soviet Union who worked on the Manhattan Project, the wartime project to develop the first atomic weapons @facethenation

David Greenglass leaves New York Federal House of Detention on November 16, 1960, after ten years in jail @facethenation

Beginning as a child star, trend-setting actress and singer Googoosh became one of the most popular Iranian celebrities in the 1970s @facethenation

Bill Clinton and his wife Hillary dance at an inaugural ball January 20, 1997 in Washington @facethenation

Neil Armstrong operating the Iron Cross Attitude Simulator reaction controls simulating the in X-15 flight at high altitudes, 1956 @facethenation

Armstrong still in the X-15's cockpit, smiling after a flight. His first flight came on November 30, 1960. In September 1962 Neil was offered a position with NASA's astronaut corps 👽 @facethenation

Julia Child 🔪 on the set of The French Chef in 1970. Her first television appearance was on her local public television station, WGBH, on a show called I've Been Reading @facethenation

Julia had many "Julia-isms" 🙌 but one of our favorites is: "The only real stumbling block is fear of failure. In cooking you’ve got to have a what-the-hell attitude" @facethenation

Heinz Guderian and Semyon Krivoshein at a Soviet-German victory parade in Brest-Litovsk on September 22, 1939 during the invasion of Poland in the city of Brest-Litovsk @facethenation

In the fall of 1959, Nikita Khrushchev became the first Soviet premier to visit the United States. Khrushchev in front of the Lincoln Memorial, Washington @facethenation

Kennedy and Khrushchev meeting in Vienna for an friendly discussion, but the respective positions of the US and the USSR remained irreconcilable since the invasion of Cuba, June 4, 1961 @facethenation