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 original American horror film ''Halloween” premiered in Kansas City, Missouri, US.
The Battle of Balaclava took place during the Crimean War.
John Hancock became the first Governor of Massachusetts after winning 90% of the votes in the Massachusetts Constitution.
Italian astronomer Giovanni Cassini discovered Iapetus, Saturn's third-largest moon.