How many humans walked on the Moon during the Apollo program?
In what year was the Woodstock music festival held?
What is the atomic number of carbon?
In what year was the Korean War armistice signed?
In what year did the Meiji Restoration begin in Japan?
In what year was the Soviet Union dissolved?
In what year was the first iPod released?
In what year did Marie Curie win her second Nobel Prize?
In what year was the Treaty of Versailles signed?
In what year was Romulus Augustulus deposed, conventionally dated as the fall of the Western Roman Empire?
In what year did Adele release her album 21?
How many members were in the Beatles' classic lineup?
How many keys does a standard full-size piano have?
In what year did the Ottoman Empire capture Constantinople?
In what year was Nirvana's album Nevermind released?
In what year did the Eurovision Song Contest first take place?
In what year did the Space Shuttle Columbia disaster occur?
In what year did the French Revolution begin?
How many planets are in the Solar System under the International Astronomical Union's 2006 definition?
In what year did NASA's Perseverance rover land on Mars?
In what year did the Titanic sink?
In what year did Spotify launch its service to the public?
