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Discovery timeline
Discovery timeline
72
years
7000 BC
7000 BC
1
6000 BC
6000 BC
1
5000 BC
5000 BC
2
1300s
1300
1
1550s
1557
1
1660s
1669
1
1730s
1735
1
1750s
1751
1
1755
1
1760s
1766
1
1770s
1772
1
1774
3
1777
1
1778
1
1780s
1783
2
1787
2
1789
3
1790s
1791
1
1797
1
1798
1
1800s
1801
2
1802
1
1803
3
1804
2
1807
2
1808
2
1810s
1810
1
1811
1
1817
3
1820s
1823
1
1825
2
1828
1
1830s
1839
1
1840s
1841
1
1843
2
1844
1
1860s
1860
1
1861
2
1863
1
1870s
1875
1
1878
2
1879
3
1880s
1880
1
1885
1
1886
2
1890s
1892
1
1894
1
1898
4
1899
2
1900s
1901
1
1906
1
1910s
1917
1
1920s
1922
1
1925
1
1930s
1937
1
1939
1
1940s
1940
2
1941
1
1944
2
1945
1
1949
1
1950s
1950
1
1952
1
1955
1
1958
1
1960s
1964
1
1970s
1976
1
1980s
1984
1
1990s
1996
1
1999
1
2000s
2006
1
2010s
2010
1