A Hindu servant serves tea to a European colonial woman in the early 20th century. The British habit of adding tea to sugar wasn't merely a matter of taste: It also helped steer the course of history. Corbis/Underwood & Underwood hide caption

itoggle caption Corbis/Underwood & Underwood

A box of five Cadbury Creme Eggs in London. The confectioner's decision to change the chocolate used to make the outer shell has left many in the U.K. in "shellshock." Anthony Devlin/PA Photos/Landov hide caption

itoggle caption Anthony Devlin/PA Photos/Landov

Britain's King George II: Snazzy dresser, adventurous eater. Hulton Archive/Getty Images hide caption

itoggle caption Hulton Archive/Getty Images

Teens dance at the club on Eel Pie Island in the 1960s. Courtesy of Dan van der Vat hide caption

itoggle caption Courtesy of Dan van der Vat