Richard M. Nixon, then seeking the Republican presidential nomination, addresses an audience in Oregon in May 1968. AP hide caption

itoggle caption AP

Traders gather on the floor of the New York Stock Exchange. Henry Ray Abrams/AP hide caption

itoggle caption Henry Ray Abrams/AP

Busts of Cleopatra VII, the last of the Ptolemaic monarchs, on exhibit at The British Museum in London. Adrian Dennis/AFP hide caption

itoggle caption Adrian Dennis/AFP

Rick Meyerowitz's The Mona Gorilla was featured on the cover of the National Lampoon's March 1971 issue. Courtesy of National Lampoon Inc. hide caption

itoggle caption Courtesy of National Lampoon Inc.

Irish playwright and novelist Emma Donoghue is also the author of the novels The Sealed Letter, Stir Fry, Hood and Slammerkin. Her latest novel, Room, has been shortlisted for the Man Booker Prize. Nina Subin hide caption

itoggle caption Nina Subin

Cheetahs walk across a savannah at the Mashatu game reserve in Botswana. Cameron Spencer/Getty Images Europe hide caption

itoggle caption Cameron Spencer/Getty Images Europe