20th century 11,463 Se poster 19th century 7,253 Se poster 18th century 3,082 Se poster 1945- 1,520 Se poster 1947- 1,432 Se poster 17th century 1,413 Se poster Revolution, 1789-1799 1,393 Se poster 16th century 1,284 Se poster Revolution, 1775-1783 939 Se poster To 1500 892 Se poster 1775-1783 699 Se poster Civil War, 1861-1865 691 Se poster 1991- 655 Se poster Colonial period, ca. 1600-1775 644 Se poster 1919-1947 632 Se poster 1869-1948 537 Se poster 1933-1945 525 Se poster 1800-1899 494 Se poster 1918-1945 442 Se poster Precambrian 437 Se poster Early modern, 1500-1700 434 Se poster 1500-1800 393 Se poster Revolution, 1917-1921 376 Se poster 1900-1999 363 Se poster 1910-1946 362 Se poster 20th Century 356 Se poster 1564-1616 330 Se poster 1724-1804 315 Se poster 1871-1918 301 Se poster Paleozoic 296 Se poster 1960- 281 Se poster 1918- 280 Se poster 1877-1938 274 Se poster Quaternary 274 Se poster Cretaceous 273 Se poster 1836-1909 272 Se poster 1861-1865 271 Se poster 1861-1941 270 Se poster 1765-1947 266 Se poster 1966- 265 Se poster 1821-1861 264 Se poster Old English, ca. 450-1100 253 Se poster Jurassic 243 Se poster d. 632 243 Se poster 1900 - 1999 240 Se poster Middle English, 1100-1500 239 Se poster To 1775 239 Se poster 1918-1933 236 Se poster 1867-1910 234 Se poster 1769-1821 231 Se poster 1600-1775 227 Se poster 1849-1870 220 Se poster 1912-1949 219 Se poster 1775-1865 210 Se poster British occupation, 1765-1947 204 Se poster 15th century 199 Se poster Mesozoic 197 Se poster Classical period, 1500-1700 191 Se poster 1789-1815 188 Se poster Cenozoic 185 Se poster Devonian 184 Se poster Middle Ages, 600-1500 184 Se poster 12th cent 178 Se poster 1945-1989 177 Se poster 1749-1832 176 Se poster 20e siècle 171 Se poster 1917-1945 168 Se poster 1483-1546 167 Se poster Middle High German, 1050-1500 166 Se poster 1818-1883 165 Se poster Tertiary 164 Se poster Carboniferous 163 Se poster 1801-1917 161 Se poster 1985-1991 160 Se poster 1986-1991 160 Se poster 1998- 160 Se poster Pleistocene 159 Se poster 1870-1924 156 Se poster 1700-1799 150 Se poster 1770-1831 150 Se poster 1977- 149 Se poster 1789-1900 148 Se poster 324 B.C.-1000 A.D. 146 Se poster 1857-1919 141 Se poster 1946- 141 Se poster Early church, ca. 30-600 140 Se poster German occupation, 1940-1945 140 Se poster 1971- 138 Se poster Sepoy Rebellion, 1857-1858 137 Se poster 1905- 135 Se poster 1917- 135 Se poster 1939-1945 134 Se poster Triassic 134 Se poster 1815-1870 128 Se poster 1882-1921 127 Se poster 1900- 127 Se poster 15th cent 126 Se poster 1949- 126 Se poster To 1700 126 Se poster Wars of Independence, 1556-1648 126 Se poster