A pivotal event in world history that marked the falling of the Iron Curtain and the start of the end of the Cold War.

Apollo 11 was the first spaceflight that landed humans on the Moon. Americans Neil Armstrong and Buzz Aldrin were the first to walk on the lunar surface.

A period of intense artistic, cultural, and intellectual revival in Europe, spanning from the 14th to the 17th century.

The transition to new manufacturing processes in Europe and the United States, in the period from about 1760 to sometime between 1820 and 1840.

A global war that lasted from 1939 to 1945, involving the vast majority of the world's countries—including all the great powers.

Alexander Fleming discovered penicillin in 1928, which marked a turning point in human medicine and the beginning of the era of antibiotics.