Henry Shaler Williams

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Secret Service Code Names of 11 U.S. Presidents

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Why Is the Mona Lisa So Famous?

illustration of the walking titanosaurus, Patagotitan mayorum

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Lusitania sinking, illustration from The War of the Nations (New York), December 31, 1919. World War I, WWI. This image is one of three on the page. (See source file for the other two.)

7 of the World’s Deadliest Shipwrecks

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Nativity Scene, Adoration of the Magi, Church of the Birth of the Virgin Mary, Montenegro

Why Is Christmas in December?

Henry Shaler Williams

American paleontologist

Learn about this topic in these articles:

contribution to geochronology

In geochronology: Completion of the Phanerozoic time scale
…by the paleontologist and stratigrapher Henry Shaler Williams.
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