The changing state of US ethnicity

[Gerald]

The US has undergone many different immigration trends since the 15th Century, with various ethnic groups rising and falling over time.

This video looks at how the US population has defined itself within government census data, where US immigrants have originated from in the past, and how these patterns could change in the future.

http://www.bbc.co.uk/news/world-us-canada-20187325


Note: 3 November 2012 Last updated at 00:25 GMT