Statistics for History by Letter - O

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Hint	Answer	% Correct
Turkish empire that conquered Constantinople	Ottoman Empire	97%
Greek athletic competition that started in 776 BC	Olympics	94%
Drug that led to two wars in China	Opium	91%
Cromwell's first name	Oliver	86%
First king of the Netherlands	William of {Orange}	76%
One of two epics attributed to Homer	Odyssey	72%
Japanese island and site of bitter fighting in WWII	Okinawa	68%
Deadliest D-Day beach	Omaha Beach	68%
Nickname of Joan of Arc	Maid of {Orleans}	60%
Pioneer trail from Missouri to the Willamette Valley	Oregon Trail	58%
Jacqueline Bouvier's second husband	Aristotle Onassis	52%
"Father" of the A-bomb	J. Robert Oppenheimer	52%
Cartel that declared an oil embargo in 1973	OPEC	50%
Language in which "Beowulf" was written	Old English	50%
Also known as the Bolshevik Revolution	{October} Revolution	48%
Roman poet who wrote "Metamorphoses"	Ovid	44%
Site of a "land rush" in 1889	Oklahoma	44%
Site of 1993 Israel/PLO accords	Oslo	32%
Relatives of the Visigoths	Ostrogoths	30%
Ancient Mexican civilization known for colossal head sculptures	Olmec	29%