James Wilkinson rose to the rank of brigadier general during the Revolutionary War, and after a break from military service was commissioned a major general in the War of 1812. Walker & Company hide caption

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Ulle Noodapera is a pharmacist at Town Hall Pharmacy, which first opened for business in Tallinn, Estonia, in 1422. It's famous for selling aphrodisiacs — but even more famous for a piece of almond candy that allegedly cures those who are lovestruck. Raigo Pajula/AFP/Getty Images hide caption

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George Washington leads his troops across the Delaware River in 1776 during the Revolutionary War in this painting by Emanuel Leutze. AP hide caption

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Navy Lt. Don Walsh (right) and Jacques Piccard wave after emerging from a daylong trip to the deepest point in the Pacific Ocean's Mariana Trench. The men descended nearly seven miles in the bathyscaphe (or diving vessel) Trieste on Jan. 23, 1960. Thomas J. Abercrombie/National Geographic Society hide caption

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Segregated lunch counters were flashpoints for racial tensions across the South, including this one at a McCrory's store in Rock Hill, S.C. Heraldonline.com hide caption

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