Taylor Swift’s third studio album “Speak Now” was released. It won Billboard’s 2011 Album of the Year.
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Scientists in India discovered a 152-million-year-old fossil of an extinct marine reptile called the ichthyosaur.
The Battle of Agincourt between the English and the French took place.
Sid Meier's Civilization IV was made available to PC players in North America.
Benjamin O. Davis Sr. became the first African American US Army brigadier general.
John Hancock became the first Governor of Massachusetts after winning 90% of the votes in the Massachusetts Constitution.
