In what year did Alexander Fleming discover penicillin?
What is the boiling point of water at standard atmospheric pressure, in degrees Celsius?
In what year did the Chernobyl nuclear disaster occur?
In what year did World War II end?
In what year did the Space Shuttle Challenger disaster occur?
How many humans walked on the Moon during the Apollo program?
In what year was the first iPod released?
In what year were the first Grammy Awards held?
In what year did Marie Curie win her second Nobel Prize?
In what year was Romulus Augustulus deposed, conventionally dated as the fall of the Western Roman Empire?
How many strings does a standard violin have?
In what year did the Eurovision Song Contest first take place?
In what year did the French Revolution begin?
In what year was the compact disc first commercially released?
How many crewed Apollo missions landed on the Moon?
In what year did Apollo 11 land humans on the Moon?
In what year did Yuri Gagarin become the first human in space?