1 ene 1890 año - Closing of the Frontier
Descripción:
Frederick Jackson Turner and the frontier. A year after the Oklahoma Land Rush, the director of the U.S. Census Bureau announced that the frontier was closed. The 1890 census had shown that a frontier line, a point beyond which the population density was less than two persons per square mile, no longer existed.Añadido al timeline:
fecha:
1 ene 1890 año
Ahora mismo
~ 134 years ago
