Interactive map of forced migration into Texas, 1800 to 1870

Each dot is one registrant in the 1867 to 1870 Texas voter registration, moving from the state they reported as their origin to the Texas county where they registered, in the year they reported arriving. Historical county boundaries change with the year, so the map redraws them as the timeline advances. Use the timeline to play or scrub the years; select a county to read its arrival counts and the states its registrants came from.