610 In Islam, the traditional date of the Laylat al-Qadr, when Muhammad began to receive the Qur'an 1497 John Cabot tells King Henry VII of his trip to "Asia" 1675 King Charles II and John Flamsteed lay the foundation stone of the Royal Observatory in Greenwich, London 1846 US Act of Congress passes establishing the Smithsonian Institution, now world's largest museum and research complex |
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