The Cherokee have come to call the event Nu na da ul tsun yi (the place where they cried); another term is Tlo va sa (our removal)—both phrases not used at the time, and seems to be of Choctaw origin. Removal actions (voluntary, reluctantly or forcibly) occurred to other American Indian groups in the American South, North, Midwest, Southwest, and the Plains regions. The Chickasaw, Choctaw, Creek and (Muskogee) were removed reluctantly. The Seminole in Florida responded to removal by the United States Army for decades (1817–1850) with guerrilla warfare, part of the intermittent Native American Wars that lasted from 1540 to 1924. Some Seminole remained in their Florida home country, while others were transported to Native American Territory in shackles.
Sigmund Freud (writing between the 1890s and the 1930s) developed a collection of theories which have formed the basis of the psychodynamic approach to psychology.
