1817-22. Captain King maps the coast-line of Australia.
1819-22. Franklin, Back, and Richardson attempt the NorthWest Passage by land. '
1819. Parry discovers Lancaster Strait and reaches 114° W.
1820-23. Wrangel discovers his land.
1821. Bellinghausen discovers Peter Island, the most southerly land then known.
1822. Denham and Clapperton discover Lake Tchad, and visit Sokoto.
1822-23. Scoresby explores the coast of East Greenland.
1823. Weddell reaches 74.15° S.
1826. Major Laing is murdered at Timbuctoo.
1827. Parry reaches 82,45" N.
1827. Réné Caillié visits Timbuctoo.
1828-31. Captain Sturt traces the Darling and the Murray.
1829-33. Ross attempts the North-West Passage; discovers Boothia Felix.
1830. Royal Geographical Society founded, and next year united with the African Association.
1831-35. Schomburgk explores Guiana.
1831. Captain Biscoe discovers Enderby Land.
1833. Back discovers Great Fish River.
1835-49. Junghuhn explores Java.
1837. T. Simpson coasts along the north mainlaind of North America 1277 miles.
1838-40. Wood explores the sources of the Oxus.
1838-40. Dumont d'Urville discovers Louis-Philippe Land and Adélie Land.
1839. Balleny discovers his island.
1839. Count Strzelecki discovers Gipps' Land.
1840. Captain Sturt travels in Central Australia.
1840-42. James Ross reaches 78.10° S.; discovers Victoria Land, and the volcanoes Erebus and Terror.
1841. Eyre traverses south of Western Australia.
1842-62. E. F. Jomard's Monuments de la Géographie published.
1843-47. Count Castelnau traces the source of the Paraguay.
1844. Leichhardt explores Southern Australia.
1845. Huc explores Tibet.
1845. Petermann's Mittheilungen first published.
1845-47. Franklin's last voyage.
1846. First edition of K. v. Spruner's Historische Hand-atlas.
