Twenty-Four, 24

1. 1024: first paper money originates in Sichuan, China.
2. The number of blackbirds baked in a pie in the rhyme Sing a Song of Sixpence.
3. Two dozen.
4. January 24, 1958 The Quarry Men (a band that would-of course-spark The Beatles) play at the Cavern Club, Liverpool.
5. 1124: Henry I defeats Norman rebels.
6. One score and four.
7. The series which launched Jack Bauer, special agent who saves the world many times over. In 24h.
8. 1224: University of Naples is founded
9. The number of hours in an earth day.
10. The product of any four consecutive numbers is divisible by 24.
11. 1324: Black Death starts in Asia
12. En Francais: vingt-quatre
13. Chromium, Cr, the 24th element of the periodic table.
14. 1524: Florentine explorer Verrazzano reaches New York Bay, the first European ever to do so.
15. The number of frames per second at which motion picture film is usually projected.
16. 1624: Frans Hals starts painting The Laughing Cavalier.
17. In Roman: XXIV
18. 1724: Blenheim Palace construction is completed.
19. The number of letters in the classical Greek alphabet.
20. 1824: The Royal Society for the prevention of cruelty to Animals established in GB.
21. The number of carats in pure gold.
22. 1924: Lenin dies.
23. The human body contains 24 elements.
24. Christmas Eve. We're excited...