Curated OER
Etc: The Center of Population in the United States, 1790 1900
Shows dates that states of Indiana, Maryland, Ohio, Pennsylvania, Washington D.
Curated OER
Etc: The Center of Population in the United States, 1790 1900
A map from 1904 of the eastern United States showing the westward progression of the centers of population from 1790 to 1900. "The centre of population is defined as 'the point at which equilibrium would be reached were the country taken...