old fort of St. Augustine. The Castillo de San Marcos, which was the Spanish claim to the new world built somewhere around 1565. Jamestown claims to be the first colony in America, but by the time Englishmen set foot in Jamestown, the Spanish—aided by Europeans and Africans—had given birth to grandchildren in St. Augustine. If America has a birthplace, it’s here in these improbable waters and mosquito-filled shores.