In a world dominated by mainly caucasian dancers, Native American Maria Tallchief overcame discrimination to become the United States’ first prima ballerina.

An extract from Wayne McGregor's Chroma, featuring Laura Morera and Eric Underwood dancing to The Hardest Button to Button by The White Stripes. Find out more at href='http://www.roh.org.uk/chroma' target='_blank' rel='nofollow'>at...