Keep scrolling down for answers and more stats ...
1. Alexander the Great conquers Persia
2. Julius Caesar is stabbed at the Ides of March
3. Muhammad preaches in Mecca
4. Charlemagne is crowned Holy Roman Emperor
5. Qin Shi Huang is the first emperor of China
6. Mt Vesuvius erupts, burying Pompeii
7. Attila the Hun terrorizes the Eastern Roman empire
8. Leonidas and his Spartans face Xerxes and the Persians at Thermopylae
9. The Black Plague wipes out almost half of Europe
10. William of Normandy defeats Harold Godwinson at Hastings
11. Hannibal and his Carthaginian army cross the Alps
12. Lief Erkison is the first to step foot in North America
13. Martin Luther posts his 95 Thesis, starting the Protestant Reformation
14. Roman emperor Hadrian constructs a wall in northern England
15. Teenage Joan of Arc defends Orleans against the British assault
16. King Tutankhamun becomes pharaoh at 8-9 and rules for about 9 years
17. King John is forced to sign the Magna Carta following a baron rebellion
18. Ferdinand Magellans fleet becomes the first to circumnavigate the globe
19. Cyrus the Great founded the Achaemenid Empire
20. The US purchases Louisiana Territory from France, doubling the size
of the country