1. Who was the famous civil rights leader who delivered the "I Have a Dream" speech?

2. Who was the first Chancellor of a unified Germany in 1871?

3. Who was the first emperor of China?

4. Who was the U.S. president during most of the Great Depression and World War II?

5. Catherine the Great belonged to which famous Russian imperial dynasty?

6. On which island was Nelson Mandela imprisoned for 18 of his 27 years in jail?

7. What was the name of the ship Charles Darwin sailed on during his influential five-year voyage?

8. Saladin famously fought against which English King during the Third Crusade?

9. Which British Act passed in 1807 was the result of William Wilberforce's 20-year campaign?

10. What is the name of the process Pasteur developed to kill harmful bacteria in food and drink?

11. In which city was George Washington inaugurated as the first U.S. President?

12. What artifact is often cited as the first declaration of human rights issued by Cyrus the Great?

13. What was the title of Sojourner Truth's famous 1851 speech in Akron, Ohio?

14. Which city did Peter the Great build to serve as his 'Window to the West'?

15. What was the code name for the top-secret U.S. project to build the atomic bomb?

16. Rosa Luxemburg was a co-founder of which revolutionary group in Germany?

17. Ibn Battuta traveled approximately how many miles during his 30-year journey?

18. In 2014, Malala became the youngest recipient of which prestigious award?

19. In which country was Che Guevara captured and executed in 1967?

20. What field of study did Sigmund Freud found?