1. Who was the first czar of Russia?

2. Who was the U.S. president during the Civil War?

3. Who was the French military leader who became emperor in the early 1800s?

4. Who was the British monarch during the American Revolution?

5. Who was the American civil rights activist who refused to give up her bus seat in 1955?

6. Amelia Earhart was the first woman to perform which aviation feat solo?

7. In which city did Martin Luther King Jr. deliver his 'I Have a Dream' speech?

8. In which Indian city did Mother Teresa primarily conduct her humanitarian work?

9. Which famous Mongol leader did Marco Polo serve for 17 years in China?

10. What type of painting is Frida Kahlo most famous for creating?

11. On which day in the Roman calendar was Julius Caesar assassinated?

12. During which war did Harriet Tubman serve as a scout, spy, and nurse?

13. With which inventor did Ada Lovelace collaborate on the design of the Analytical Engine?

14. Which process, named after Louis Pasteur, makes milk safe by killing harmful bacteria with heat?

15. What was the name of the short-handled stabbing spear introduced by Shaka Zulu?

16. The 1913 premiere of which Stravinsky ballet famously caused a riot in Paris?

17. What is the famous 'taxicab number' associated with the conversation between Hardy and Ramanujan?

18. What fearsome nickname was given to Attila by the Romans?

19. In his famous equation $E = mc^2$, what does the 'c' represent?

20. What is the English translation of the famous phrase 'Eppur si muove' attributed to Galileo?