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Sat, Sep 26497 questions

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

answered 118146 agreed, 140 neededsigned

In what year did Marie Curie win her second Nobel Prize?

answered 1,911141 agreed, 140 neededsigned

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

answered 299,792,458142 agreed, 140 neededsigned

How many bones are in the adult human body, by the standard count?

answered 206140 agreed, 140 neededsigned

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

answered 2,012148 agreed, 140 neededsigned

In what year were the Nobel Prizes first awarded?

answered 1,901141 agreed, 140 neededsigned

How many chromosomes does a typical human somatic cell have?

answered 46153 agreed, 140 neededsigned

What is the atomic number of gold?

answered 79144 agreed, 140 neededsigned

What is the atomic number of carbon?

answered 6141 agreed, 140 neededsigned

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

answered 1,953153 agreed, 140 neededsigned

In what year did the Wright brothers make their first powered flight?

answered 1,903144 agreed, 140 neededsigned

In what year did the Suez Crisis occur?

answered 1,956145 agreed, 140 neededsigned

In what year was the Korean War armistice signed?

answered 1,953140 agreed, 140 neededsigned

In what year was the Treaty of Versailles signed?

answered 1,919144 agreed, 140 neededsigned

In what year did India gain independence from Britain?

answered 1,947140 agreed, 140 neededsigned

In what year did the Meiji Restoration begin in Japan?

answered 1,868145 agreed, 140 neededsigned

In what year did the Ottoman Empire capture Constantinople?

answered 1,453142 agreed, 140 neededsigned

In what year did the United States declare independence?

answered 1,776146 agreed, 140 neededsigned

In what year did the Great Fire of London occur?

answered 1,666140 agreed, 140 neededsigned

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

answered 1,994142 agreed, 140 neededsigned

In what year was the Soviet Union dissolved?

answered 1,991141 agreed, 140 neededsigned

In what year did the Chernobyl nuclear disaster occur?

answered 1,986150 agreed, 140 neededsigned

In what year did the Titanic sink?

answered 1,912142 agreed, 140 neededsigned

In what year was the Battle of Hastings fought?

answered 1,066146 agreed, 140 neededsigned

In what year was Romulus Augustulus deposed, conventionally dated as the fall of the Western Roman Empire?

answered 476140 agreed, 140 neededsigned