Orangutan

Orangutans are great apes native to the rainforests of Indonesia and Malaysia. They are now found only in parts of Borneo and Sumatra, but during the Pleistocen…
Nature

Orca

The orca (Orcinus orca), or killer whale, is a toothed whale and the largest member of the oceanic dolphin family. The only extant species in the genus Orcinus,…
Nature

Order of Brothelyngham

The Order of Brothelyngham was a group of men who, in the mid-14th century, formed themselves into a fake religious order in the city of Exeter, England. They m…

Order of Canada

The Order of Canada (French: Ordre du Canada) is a Canadian national order and the second-highest honour for merit in the system of orders, decorations, and med…

Order of the Garter

The Most Noble Order of the Garter is an order of chivalry founded by King Edward III in 1348. The most senior order of knighthood in the British honours system…

Order of the Thistle

The Most Ancient and Most Noble Order of the Thistle is an order of chivalry associated with Scotland. The current version of the order was founded in 1687 by K…

Ordinances of 1311

The Ordinances of 1311 (The New Ordinances, Norman: Les noveles Ordenances) were a series of regulations imposed upon King Edward II by the peerage and clergy o…

Oregon State Capitol

The Oregon State Capitol is the building housing the state legislature and the offices of the governor, secretary of state, and treasurer of the U.S. state of O…

Oregon Trail Memorial half dollar

The Oregon Trail Memorial half dollar was a fifty-cent piece struck intermittently by the United States Bureau of the Mint between 1926 and 1939. The coin was …

Oriental Film

Oriental Film was a film production company in Batavia, Dutch East Indies (now Jakarta, Indonesia). Established by ethnic Chinese businessman Tjo Seng Han in 19…

Oriental Stories

Oriental Stories, later retitled The Magic Carpet Magazine, was an American pulp magazine published by Popular Fiction and edited by Farnsworth Wright. It was l…

Orion (mythology)

In Greek mythology, Orion (/əˈraɪən/; : Ancient Greek: Ὠρίων or Ὠαρίων, romanized: Ōríōn) was a giant huntsman whom Zeus or Artemis placed among the stars as a …

Ormond Beatty

Ormond Beatty (August 13, 1815 – June 24, 1890) was an American educator and academic administrator. He was the seventh president of Centre College in Danville,…

Ormulum

The Ormulum or Orrmulum is a twelfth-century work of biblical exegesis, written by an Augustinian canon named Orrm (or Orrmin) and consisting of just under 19,0…

Ornithoprion

Ornithoprion is an extinct genus of cartilaginous fish. The only known species, O. hertwigi, lived during the Moscovian stage of the Pennsylvanian subperiod, wh…

Orpheus in the Underworld

Orpheus in the Underworld and Orpheus in Hell are English names for Orphée aux enfers (French: [ɔʁfe oz‿ɑ̃fɛʁ]), a comic opera with music by Jacques Offenbach a…

Orphic Hymns

The Orphic Hymns are a collection of eighty-seven ancient Greek hymns addressed to various deities, which were attributed in antiquity to the mythical poet Orph…

Orval Grove

Orval Leroy Grove (August 29, 1919 – April 20, 1992) was an American professional baseball player. He was a pitcher in Major League Baseball (MLB) for ten seaso…
Sports

Oryzomys

Oryzomys is a genus of semiaquatic rodents in the tribe Oryzomyini living in southern North America and far northern South America. It includes eight species, t…

Oryzomys antillarum

Oryzomys antillarum, also known as the Jamaican rice rat, is an extinct rodent of Jamaica. A member of the genus Oryzomys within the family Cricetidae, it is si…

Oryzomys couesi

Oryzomys couesi, also known as Coues's rice rat, is a semiaquatic rodent in the family Cricetidae occurring from southernmost Texas through Mexico and Central A…

Oryzomys dimidiatus

Oryzomys dimidiatus, also known as the Nicaraguan oryzomys, Thomas's rice rat, or the Nicaraguan rice rat, is a rodent in the family Cricetidae. It is known fro…