| 2015 | 1903 map of races and immigrants in US |
- Americans' understanding of who counts as "white" has changed dramatically throughout the country's history and even over the last century alone. This map — which covers a decade of immigration to the US, from 1892 to 1903 (via the JF Ptak Science Books blog and Slate) — is a dramatic illustration of what it looked like when "white" wasn't the same thing as European.
