1. On 4 August 1914, Britain declared war on Germany. Which country's invasion by Germany was the immediate reason?

2. On 4 August 1944, the girl from your 12 June round and her family were discovered in their hiding place in Amsterdam and arrested. Who was she?

3. During the night of 4 August 1789, the French National Assembly voted to abolish what ancient system of privileges?

4. A famous story says that on 4 August 1693, a Benedictine monk tasted a new sparkling wine and cried "Come quickly, I am drinking the stars!" Who was he? Which famous wine is said to have been invented?

5. A famous American magazine, later known for Norman Rockwell's covers, first appeared on 4 August 1821. What was it called?

6. On 4 August 1892, a wealthy couple were murdered with an axe in Fall River, Massachusetts. Their daughter was tried and found not guilty in your 20 June round. Who was she?

7. On 4 August 2007, NASA launched a lander that later became the first to scoop up water ice near Mars's north pole. What was it called?

8. The English Romantic poet from your 8 July round was born on 4 August 1792. Who was he?

9. A US president was born in Honolulu on 4 August 1961. Who is he?

10. A jazz trumpeter was born on 4 August 1901, although he always claimed his birthday was 4 July 1900. Who was he?

11. The royal bride from your Remembrance round, who later became Queen Elizabeth the Queen Mother, was born on 4 August 1900. How old was she when she died?

12. An American actress who married into the British royal family was born on 4 August 1981. Name her and her husband.

13. A Norwegian author born on 4 August 1859 wrote "Hunger" and won the 1920 Nobel Prize. Who was he?

14. An Irish mathematician born on 4 August 1805 carved a new mathematical formula into a Dublin bridge when inspiration struck. Name him and the numbers he invented.

15. A French trunk maker born on 4 August 1821 founded a famous luxury luggage company. Who was he?

16. An English mathematician born on 4 August 1834 gave his name to diagrams of overlapping circles. Who was he?

17. A Danish author of fairy tales died in Copenhagen on 4 August 1875. Name him and one of his tales.

18. A French woman who held the record for the longest confirmed human lifespan died on 4 August 1997. Name her and her age.

19. On 4 August 1984, the West African country of Upper Volta changed its name. What is it called now?

20. Which US military service traces its origins to 4 August 1790, when Congress created the Revenue Cutter Service?