important history

3. A series of religious wars between Christians & Muslims in the medieval era [8]
5. The capital of the Roman Empire [12]
8. Invented the printing press [9]
10. Capital of the Inca Empire [5]
11. The first man-made satellite launched by the Soviet Union [7]
16. Wrote 'The Origin of Species' about evolution via natural selection [7,6]
18. Greek tragedy about a king who kills his own father and marries his own mother [7,3]
19. Mausoleum built by Mughal Emperor Shah Jahan for his wife [3,5]
20. US President fighting to end slavery during the American Civil War [7,7]
21. Mongolian conqueror who founded the largest empire in history [7,4]
24. Roman city destroyed by a volcanic eruption [7]
25. Extremist militant organisation responsible for 9/11 [2,5]

1. His assassination triggered WWI [8,5,9]
2. An event in Norse mythology about the destruction of the universe and gods [8]
4. Hitler's autobiographical manifesto [4,5]
6. The native civilisation in Mexico before the Spanish Conquest [5]
7. Churchill's famous speech about the division of Europe during the Cold War [4,7]
9. Political document by Karl Marx & Friedrich Engels [3,9,9]
12. The Virgin Queen [9,1]
13. Nickname given to a devastating pandemic in Europe & Asia in the 1300s [3,5,5]
14. Shot alongside his family during the Russian Revolution [4,8,2]
15. Michelangelo takes 4 years to paint this ceiling in Rome [7,6]
17. Communist founder of the People's Republic of China [3,6]
22. Greek Titan, father of Zeus, who ate his own children out of fear of being overthrown [6]
23. The first spacecraft to land humans on the moon in 1969 [6,2]