Ocotepeque, Salvador, Cent. A. Troops of Carrera defeated by those of San Salvador, 1863.
[Ogdensburg], N.Y. 44N. 75W. English repulsed by Brown, 1812; entered and plundered by English, 1813.
[Ohio], U.S. 38N. 80W. Explored by La Salle about 1680; valley taken possession of for French by de Bienville, 1749; explored by Christopher Gist for Ohio Company, 1750-2; English settlements in destroyed by French, 1752; cause of war between the two countries, 1755; ceded to England, 1763, and Marietta settled, 1788; lost to her by W. of Ind.; admitted to Union, 1802.
[Ohio], river. Discovered by La Salle, 1669; explored by Christopher Gist, 1750-1.
[Oklahoma] ('beautiful land'). 35N. 96W. Entered the Union (with Indian territory) as a state, 1906.
Onoto, Venezuela. 9N. 65W. Paez defeated by Royalists, 1818 (S. A. W. Ind.).
[Oregon], U.S. 42N. 116W. Ferreto in, 1543; Drake off, 1579; Cook landed at Nootka Sound, to which he gave its name, 1778; mouth of Columbia R. discovered by Spaniards, 1775; named by Gray, 1792; coast explored by Vancouver, 1793; explorations in under Lewis and Clarke, 1804-6; boundary dispute between Great Britain and America settled, 1846; organised as a territory, 1848; admitted to Union, 1859. (See [Astoria].)
[Orinoco], river, S.A. 8N. 60W. Columbus at mouth of, 1498; Raleigh rowed partly up in search of the gold mines of Manoa, 1595; Kemys sent up by Raleigh, 1617, during the latter's last expedition; Kemys attacked San Tomas and Raleigh's son was killed.
Oriskany, near Utica, N.Y. 43N. 75W. Victory of Patriots over Mohawks and Tories, 1777 (W. of Ind.).
[Orleans], Island of, Canada. 46N. 70-71W. Discovered by Cartier, who called it the Island of Bacchus on account of the number of its vines, 1535.