A big anniversary looms, as you may have heard. The American Revolution started 250 years ago, on April 19, 1775, in Lexington and Concord. Cue the fifes and drums.

The Royal Academy of Arts presents Entangled Pasts, 1768–now: Art, Colonialism and Change ... Joshua Reynolds and Yinka Shonibare. John Singleton Copley and Hew Locke. Past and present collide in one ...