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Rural Irish landscape, Sligo, Ireland.

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Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.

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earthquake. Heavily damaged school in the town of Yingxiu after a major earthquake struck China's Sichuan Province on May 12, 2008.

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Ethel Rosenberg arrested in August 1950. Photograph dated Aug. 8, 1950. American civilians executed for espionage. Spies, communists, Julius Rosenberg

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Super Typhoon Noru over the western tropical Pacific Ocean as observed by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA Aqua satellite July 31 2017

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barbican

architecture

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feature of castle

In castle
…was often protected by a barbican—a walled outwork in front of the gate—and the passage through the gateway was defended by portcullises, doors, and machicolations. Portcullises were generally made of oak, were plated and shod with iron, and were moved up and down in stone grooves, clearing or blocking the…
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