PrimeWire

You can now watch the entire How the States Got Their Shapes movie online in high-definition quality, complete with English subtitles for a better viewing experience. Best of all, there’s no need to download anything—simply stream it directly from your device anytime, anywhere.

Follows correspondent Brian Unger as he criss-crosses the country reporting on the tales behind the boundaries. Think: Why does Montana look like it took a bite out of Idaho? Or how are ...