1. On 9 April 1865, General Robert E. Lee surrendered to General Ulysses S. Grant, effectively ending the American Civil War. In which Virginia village, and in whose house?

2. On 9 April 1940, Germany invaded two Scandinavian countries at the same time. Name both.

3. On 9 April 1917, all four divisions of a Commonwealth army corps attacked together for the first time and captured a ridge near Arras. Which ridge, and which country's troops?

4. On 9 April 1959, NASA introduced its first group of astronauts to the press, including the men from your 5 May and 18 July rounds. What were they called?

5. Which Boeing airliner, now the best-selling jet airliner in history, first flew on 9 April 1967?

6. On Easter Sunday, 9 April 1939, a Black singer performed for 75,000 people at the Lincoln Memorial, after being refused permission to sing in Constitution Hall. Who was she?

7. On 9 April 2005, Prince Charles married Camilla Parker Bowles. Why had the wedding been put back by a day?

8. On 9 April 1682, a French explorer reached the mouth of the Mississippi and claimed the whole river basin for France. Name him. What did he name the territory?

9. The victor of Agincourt, from your 25 October round, was crowned on 9 April 1413. Who was he?

10. An English king died suddenly on 9 April 1483. His two young sons became famous mysteries. Name the king. What are the boys known as?

11. The philosopher from your 22 January round died on 9 April 1626, reportedly after catching a chill while stuffing a chicken with snow. Who was he?

12. A German Lutheran pastor and anti-Nazi was executed at Flossenbürg concentration camp on 9 April 1945, just weeks before the end of the war. Who was he?

13. The engineer who designed the ship from your 27 July round was born in Portsmouth on 9 April 1806. Who was he?

14. The French poet from your 31 August round was born on 9 April 1821. Who was he?

15. An American magazine publisher born on 9 April 1926 founded Playboy. Who was he?

16. An American singer, actor and activist born on 9 April 1898 made "Ol' Man River", from your 27 December round, his signature song. Who was he?

17. A Spanish golfer born on 9 April 1957 won five major titles and was a Ryder Cup legend. What was his name?

18. An American actress born on 9 April 1990 starred as Bella Swan in the "Twilight" films. Who is she?

19. An English photographer born in Kingston upon Thames on 9 April 1830 proved that all four of a galloping horse's hooves leave the ground at once. Who was he?

20. The architect from your 8 June round died on 9 April 1959. Who was he?