20th century 3,842 View Records 19th century 2,712 View Records 1945- 1,397 View Records Revolution, 1789-1799 1,394 View Records 1947- 1,388 View Records 18th century 1,237 View Records Revolution, 1775-1783 942 View Records 1775-1783 698 View Records Civil War, 1861-1865 689 View Records Colonial period, ca. 1600-1775 644 View Records 1919-1947 638 View Records 1991- 637 View Records 16th century 593 View Records 17th century 551 View Records 1933-1945 516 View Records 1918-1945 424 View Records 1800-1899 410 View Records Revolution, 1917-1921 376 View Records 1869-1948 374 View Records 1910-1946 362 View Records 20th Century 354 View Records Precambrian 344 View Records 1871-1918 301 View Records 1960- 290 View Records 1836-1909 273 View Records 1765-1947 271 View Records 1861-1865 269 View Records 1966- 265 View Records 1821-1861 263 View Records 1918- 255 View Records Paleozoic 252 View Records To 1775 239 View Records Cretaceous 236 View Records 1918-1933 235 View Records 1867-1910 234 View Records Quaternary 229 View Records 1600-1775 227 View Records 1849-1870 221 View Records 1912-1949 218 View Records British occupation, 1765-1947 215 View Records 1775-1865 210 View Records Jurassic 203 View Records 1789-1815 191 View Records Mesozoic 170 View Records 1917-1945 168 View Records Devonian 166 View Records Cenozoic 163 View Records 1985-1991 162 View Records 1801-1917 161 View Records 1998- 160 View Records 1986-1991 159 View Records 1900-1999 158 View Records 1769-1821 157 View Records 324 B.C.-1000 A.D. 157 View Records 1945-1989 153 View Records 1789-1900 151 View Records 1977- 150 View Records To 1500 147 View Records 15th century 146 View Records Tertiary 143 View Records 1857-1919 141 View Records Pleistocene 141 View Records Carboniferous 140 View Records German occupation, 1940-1945 140 View Records Sepoy Rebellion, 1857-1858 137 View Records 1971- 129 View Records 1815-1870 128 View Records Wars of Independence, 1556-1648 126 View Records 1948- 124 View Records Revolution, 1945-1949 124 View Records 1949- 123 View Records To 1200 123 View Records 1946- 122 View Records Revolution, 1971 121 View Records 1917-1936 119 View Records 1848-1852 118 View Records 1830-1962 117 View Records 1526-1765 115 View Records Triassic 113 View Records 1700-1799 111 View Records 1939-1945 108 View Records 1917- 107 View Records To 332 B.C. 107 View Records To 324 B.C. 104 View Records 1901-1910 102 View Records 1941-1979 102 View Records Revolution, 1791-1804 101 View Records 1889-1964 98 View Records Ottoman Empire, 1288-1918 98 View Records British occupation, 1882-1936 97 View Records War of 1812 97 View Records 20e siècle 96 View Records Cambrian 96 View Records 1975-1985 95 View Records 1970-1991 94 View Records Permian 94 View Records To 1533 91 View Records 1876-1948 90 View Records 1949-1976 90 View Records 1837-1901 86 View Records