A fireman from the London Fire Brigade, wearing a smoke helmet. (Photo by Topical Press Agency/Getty Images). Circa 1908

An Iranian soldier guards two German tourists near the Iranian-Turkish border during World War II. Since the British occupation of Iran, all Axis nationals are being expelled from the country. (Photo by Three Lions/Getty Images). Circa 1941

English comic actor and director Charlie Chaplin (Sir Charles Spencer Chaplin, 1889–1977) seated on straw bales during the filming of “The Circus” with his leading lady Merna Kennedy (1908–1944). (Photo by Margaret Chute/Getty Images). 1928

“Boom, a three-year-old Staffordshire Bull Terrier, who loves birds and rabbits. He has already acquired a legion of fans on his Facebook page, and who can blame them? He might actually be the cutest pup we've ever laid eyes on (and his little buddies seem to agree). Check out these pics and see if you don't fall in love!” (Photo by Boom)

“This brought me back. While I was doing my photo shoot this week for Muscle & Fitness, I could practically hear Joe Weider screaming, “Come on Arnold! What’s wrong with you? Pull in the stomach.” Watch for the issue in September!”

Mug shot of De Gracy (sic) and Edward Dalton. Details unknown. Central Police Station, Sydney, around 1920. (Photo by NSW Police Forensic Photography Archive, Justice & Police Museum, Histiric Houses Trust of NSW)

Two women lighting cigarettes on a tennis court in Essex, England circa 1930's. (Photo by Keystone View/FPG/Getty Images)

Tsar Alexander II (1818–1881) known as “The Liberator” lying in state. He was mortally wounded by an assassination attack in St Petersburg. (Photo by Hulton Archive/Getty Images). March 1881