Columbus set sail from Palos, Spain, with three small ships, the Santa María, the Pinta and the Niña. On October 12, the expedition sighted land, probably Watling Island in the Bahamas, and went ashore the same day, claiming it for Spain.
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overcrowding, poor sanitation, spread of diseases, and pollution
President Jefferson authorized Robert Livingston and James Monroe to purchase all the Louisiana Territory This agreement was known as the Louisiana Purchase. The purchase itself included land from fifteen present day states including portions of Arkansas, Missouri, Iowa, Oklahoma, Kansas and Nebraska, South Dakota, Montana, Wyoming, Colorado.
Republic of Texas.
Texas was not a state yet and the Alamo had not occurred yet, and the borders were only created after the war was over