1433, the great voyages of Admiral Zheng He --
1453, the fall of Constantinople --
1455, Gutenberg's print revolution --
1492, the Columbian exchange --
1600, the British East India Company --
1648, the treaty of Westphalia --
1676, Van Leeuwenhoek's microscope --
1751, Diderot's enlightenment encyclopedia --
1787, the American experiment --
1789, the French Revolution --
1838, the British Slavery abolition act --
1839, the opium war in China --
1859, Darwin and the origin of species --
1869, binding continents --
1893, first women voters in New Zealand --
1896, the invention of motion pictures --
1903, Kitty Hawk and powered flight --
1904, the Russo-Japanese war --
1928, the discovery of penicillin --
1942, the dawn of the atom --
1969, walking on the moon --
1972, China enters the world balance --
1989, the fall of the Berlin wall --
2004, the rise of social media.
