1. Handel's "Messiah" was first performed on 13 April 1742, at a music hall on Fishamble Street. In which city?

2. The Edict of Nantes, traditionally dated 13 April 1598, granted religious rights to which group?

3. On 13 April 1970, the crew of Apollo 13 reported "Houston, we've had a problem". What had exploded?

4. On 13 April 1997, aged 21, Tiger Woods won his first major, the Masters. By how many strokes did he win, a record?

5. On 13 April 1919, troops fired on a crowd in the Jallianwala Bagh in Amritsar, killing hundreds. Which British officer gave the order?

6. On 13 April 1204, the armies of the Fourth Crusade sacked Constantinople. A famous group of four bronze horses taken then is now kept in which Venetian church?

7. The Catholic Emancipation Act received royal assent on 13 April 1829. Which Irish campaigner, "The Liberator", had led the fight for it?

8. On 13 April 1861, the Union garrison of Fort Sumter surrendered, at the very start of the American Civil War. In the harbour of which city is the fort?

9. An American president born on 13 April 1743, by the modern calendar, appears on which unusual US banknote?

10. An Irish playwright born on 13 April 1906 wrote a play in which two tramps wait for someone who never arrives. Name the two tramps.

11. An Irish poet born on 13 April 1939 won the Nobel Prize in 1995 and made a celebrated translation of which Old English epic?

12. A chess champion born in Baku on 13 April 1963 lost a famous 1997 match to which IBM computer?

13. An American outlaw born on 13 April 1866 led a gang with the Sundance Kid. By what name was the gang known?

14. A British prime minister born on 13 April 1732 led the government during the loss of the American colonies. By what title is he usually known?

15. Catherine de' Medici, born in Florence on 13 April 1519, is often blamed for which 1572 massacre of Protestants in Paris?

16. An American soul singer born on 13 April 1946 had a hit with "Let's Stay Together" and later became a church pastor. Who is he?

17. A German singer born in Munich on 13 April 1975 had a worldwide hit in 1999 by adding words to a 1949 mambo by Pérez Prado. What was it called?

18. An English actor born on 13 April 1951 played the fifth Doctor in "Doctor Who" and, earlier, Tristan Farnon in which BBC series about Yorkshire vets?

19. The Thai New Year festival begins on 13 April and is famous for nationwide water fights. What is it called?

20. On 13 April 1943, German radio announced the discovery of mass graves of thousands of Polish officers murdered by the Soviet secret police. In which forest near Smolensk were they found?