U.S. Timeline, The 1880's - America's Best History
https://americasbesthistory.com/abhtimeline1880.html
WEBJune 1, 1880 - The national population in 1880 reached 50,189,209 people, an increase of 30.2% over the 1870 census. The geographic center of the U.S. population now reaches west/southwest of Cincinnati, Ohio in Kentucky. Five states now have more than two million in population; New York, Pennsylvania, Ohio, Illinois, and Missouri.
DA: 23 PA: 24 MOZ Rank: 34