ANSWERS

1. The Gregorian calendar was introduced, replacing the Julian calendar.

2. Napoleon, on St Helena

3. Mata Hari, whose real name was Margaretha Zelle. She was Dutch.

4. "I Love Lucy", starring Lucille Ball and Desi Arnaz

5. Michael Fish

6. ThrustSSC, driven by Andy Green

7. Yang Liwei, in Shenzhou 5

8. Virgil, "The Aeneid"

9. Friedrich Nietzsche

10. P.G. Wodehouse. The characters are Bertie Wooster and Jeeves.