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37 Topic Pages Found in History and starting with the letter O
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Open Occupy movement
Occupy movement

The Occupy movement is a protest movement focused on social and economic inequalities. Inspired by world events such as the Arab Spring, the Spanish

Open Ochoa, Ellen (1958 - )
Ochoa, Ellen (1958 - )

b. 1958 Electrical Engineer, Astronaut Education: B.S., San Diego State University, 1980; M.S., Stanford University, 1981, Ph.D., electrical

Open O'Connor, Flannery (1925-1964)
O'Connor, Flannery (1925-1964)

One of the most important voices in American fiction, Flannery O'Connor's art combines jarring intensity, stylistic economy, sardonic humor,

Open Odin (Norse mythology)
Odin (Norse mythology)

Chief god of Norse mythology, god of war, and the source of wisdom. A sky god, he lived in Asgard at the top of the world-tree Yggdrasil . From the

Open Odysseus (Greek mythology)
Odysseus (Greek mythology)

Mythical king of Ithaca, son of Laertes and Antikleia; with Penelope, father of Telemachos. In the Iliad , he is already Odysseus "of the many wiles"

Open The Odyssey
The Odyssey

In time, the tale of Troy became the center of a great cycle of songs, depicting and glorifying the regular heroic theme of an attack on a town. We

Offa, King of the Mercians, -796

( ŏf'ə ), d. 796, king of Mercia (757–96). He succeeded Æthelbald to the throne, but it was some years before he attained the power of his

Open Oklahoma City Federal Building Bombing
Oklahoma City Federal Building Bombing

The 1995 bombing of the Alfred P. Murrah Federal Building in Oklahoma City, Oklahoma, is among the worst acts of domestic terrorism committed on U.S.


( ōl'mĕk ), term denoting the culture of ancient Mexican natives inhabiting the tropical coastal plain of the contemporary states of Veracruz and

Open Olympic Games
Olympic Games

The world's oldest sports spectacular, the first known Olympiad was held in 776 B.C.E. in Olympia, Greece. It is believed the festivals began before