How many protons does a helium nucleus have?

What is the atomic number of gold?

What is the speed of light in vacuum, in meters per second, as defined exactly by the SI?

How many elements were in the periodic table as of 2025?

In what year was the Battle of Hastings fought?

In what year did Alexander Fleming discover penicillin?

In what year did Elvis Presley die?

What is the atomic number of uranium?

In what year was the discovery of the Higgs boson announced at CERN?

How many chromosomes does a typical human somatic cell have?

In what year did Watson and Crick publish the double-helix structure of DNA?

How many Grammy Awards had Beyoncé won through the February 2025 ceremony?

In what year did the Space Shuttle Challenger disaster occur?

In what year was MTV launched?

What is the atomic number of carbon?

In what year did the Meiji Restoration begin in Japan?

In what year did Nelson Mandela become President of South Africa?

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?

In what year was the Woodstock music festival held?

In what year was Michael Jackson's album Thriller released?

In what year was Bob Dylan awarded the Nobel Prize in Literature?

In what year was Nirvana's album Nevermind released?

In what year did the Eurovision Song Contest first take place?