History of St. Louis (1763–1803) History of St. Louis (1763–1803) The history of St. Louis, Missouri from 1763 to 1803 was marked by the transfer of French Louisiana to Spanish control, the founding of the city of St. Louis, its slow growth and role in the American Revolution under the rule of the Spanish, the transfer of the area to American control in the Louisiana Purchase, and its steady growth and prominence since then. In mid-1763, French Governor Jean-Jacques Blaise d'Abbadie granted a trade monopoly over the west upper Mississippi region to Gilbert Antoine de St. Maxent, a New Orleans merchant. Maxent quickly engaged the
Spanish language in the United States territory, including the French colony of Louisiana that was under Spanish occupation from 1769 to 1800, and then part of the United States since 1803. When Louisiana was sold to the United States, its Spanish, Louisiana Creole people and Cajun French inhabitants became U.S. citizens, and continued to speak Spanish or French. In 1813, George Ticknor started a program of Spanish Studies at Harvard University. In 1821, after Mexico's War of Independence from Spain, Texas was part of the United Mexican States as the state of Coahuila y Tejas. A large influx of Americans soon followed, originally with the approval