1. In 30 AD, according to scholars' estimates, Jesus was crucified by Roman troops in Jerusalem.

2. In 451, Attila the Hun plundered Metz in northeastern France.

3. In 529, the first draft of the Corpus Juris Civilis, or the Justinian Code, was issued by Eastern Roman Emperor Justinian I.

4. In 1118, Pope Gelasius II was excommunicated by Henry V, Holy Roman Emperor, forcing him to flee Rome and rule in exile.

5. In 1348, Prague University, the first university in Central Europe, was formed by Charles IV.

6. In 1456, Louis van Burbon became the prince - bishop of Luik.

7. In 1498, a crowd stormed Savonarola's convent San Marco in Florence, Italy.

8. In 1509, France declared war on Venice.

9. In 1521, the inquisitor - general Adrian Boeyens banned Lutheran books.

10. In 1521, Portuguese navigator Ferdinand Magellan's fleet reached Cebu.

11. In 1541, Francis Xavier left Lisbon on a mission to the Portuguese East Indies.

12. In 1584, Ypres surrendered to the Duke of Parma.

13. In 1625, Albrecht von Wallenstein was appointed German supreme commander by Holy Roman Emperor Ferdinand II.

14. In 1645, Michael Cardozo became the first Jewish lawyer in Brazil.

15. In 1655, Fabio Chigi replaced Pope Innocent X as Pope Alexander VII.

16. In 1712, a slave revolt in New York killed 6 white men, and 21 African Americans were executed.

17. In 1724, Johann Sebastian Bach's "St John Passion" premiered on Good Friday at St. Nicholas Church in Leipzig, Electorate of Saxony (now Germany).

18. In 1739, Dick Turpin was executed in England for horse stealing.

19. In 1776, Captain John Barry and the USS Lexington captured the Edward.

20. In 1788, the first settlement in Ohio was established at Marietta.

21. In 1794, English chemist and theologian Joseph Priestley departed England for America on board Sansom at Gravesend.

22. In 1795, France adopted the metre as the basic measure of length.

23. In 1798, the Mississippi territory was organized.

24. In 1805, the Lewis and Clark expedition left Fort Mandan, beginning their journey to the Pacific Ocean.

25. In 1805, the premiere of Ludwig van Beethoven's "Eroica" (Symphony No. 3) was held at the Theater an der Wien, Vienna.

26. In 1818, General Andrew Jackson conquered Spanish Fort San Marcos in Spanish Florida during his pursuit of the Seminole tribe.

27. In 1824, the first performance of Ludwig van Beethoven's "Missa Solemnis" was held in St. Petersburg, Russia.

28. In 1827, English chemist John Walker sold the world's first friction matches.

29. In 1831, Brazilian Emperor Dom Pedro abdicated, leaving his son, Dom Pedro II, as head of state.

30. In 1853, Queen Victoria asked John Snow to administer chloroform during the delivery of her eighth child, leading to wider acceptance of obstetrical anesthesia.

31. In 1860, Grand Duke Frederik I liberalized laws in Bathe.

32. In 1862, Grant defeated the Confederates at the Battle of Shiloh, Tennessee.

33. In 1863, the Battle of Charleston, South Carolina, took place.

34. In 1865, the Battle of Farmville, Virginia, took place.

35. In 1868, Thomas D'Arcy McGee, one of the Canadian Fathers of Confederation, was assassinated.

36. In 1890, the first Lake Biwa Canal in Japan was completed.

37. In 1891, Nebraska introduced the 8 - hour workday.

38. In 1895, polar explorer Fridtjof Nansen reached a record 86°13.6′N latitude north.

39. In 1896, American athlete Robert Garrett won the throwing double at the Athens Olympics.

40. In 1901, the SDAP demanded the general voting right and the abolishment of the first chamber.

41. In 1902, the Texas Oil Company (Texaco) was formed.

42. In 1906, Mount Vesuvius erupted in Italy.

43. In 1906, the Act of Algeciras was drawn between the Moroccan police and the banking business.

44. In 1917, J. M. Barrie's play "The Old Lady Shows Her Medals" premiered in London.

45. In 1917, Manuel de Falla's ballet "El Sombrero de Tres Picos" premiered in Madrid, Spain.

46. In 1919, the first parcel of land was purchased for the Cleveland Metroparks.

47. In 1921, revolutionary leader Sun Yat - sen was elected president of China at Canton.

48. In 1945, the Japanese battleship Yamato was sunk by the US Navy in the Pacific Ocean.

49. In 1948, the World Health Organization was established, and April 7 was designated as World Health Day.

50. In 1994, violence erupted in Rwanda, foreshadowing genocide.