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  05:03

  History of Castillo de San Marcos in ...

  History of Castillo de San Marcos in ...

  Castillo de San Marcos is the oldest masonry fort in the United States. It was initially built in the 1600s to defend St. Augustine, Florida from attack. British pirates and privateers had burned previous wooden forts in the area, so a masonry fort was constructed. The initial phase of constructi...

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  45:08

  Forts of Wyoming

  Forts of Wyoming

  Explore the Forts of Wyoming from the late 19th Century

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  05:46

  The Siege of Fort Pulaski

  The Siege of Fort Pulaski

  Fort Pulaski was built as part of the Third System of Coastal Fortifications after the war of 1812. Construction of the Fort took place over many years between 1829 and 1847. The Fort stands on Cockspur Island, at the mouth of the Savannah River, and guards the city of Savannah from seaborn attac...