Two children jumping through a water hydrant's shower on a New York street. They have come from a neighbouring co-educational playgroup organised by the city's Police Department. (Photo by Orlando/Getty Images). 1950

A new monorail service in Houston, Texas, ready for its inaugural service. (Photo by Evans/Three Lions/Getty Images). Circa 1950

An elephant enjoys its back being scrubbed by the keeper on March 1, 1950. (Photo by Fox Photos/Getty Images)

“Tony Lepore (born October 17, 1947), aka the Dancing Cop, is a retired American police officer who has been entertaining on the streets of Providence, Rhode Island during the December holiday season by directing traffic using a dancing style since 1984”. – Wikipedia

Photo: Retired police officer Tony Lepore performs his dance routine while directing traffic December 14, 2004 in downtown Providence, Rhode Island. Lepore has been entertaining drivers and directing traffic at intersections around Providence for 20 years. He came upon the idea after seeing a “Candid Camera” clip of New York City police officers who flamboyantly directed traffic in the 1950's. (Photo by Darren McCollester/Getty Images)

Battle-weary American troops withdraw from Yong San in Korea. (Photo by Keystone/Getty Images). 1950

Two elderly men smoking pipes of opium on a terrace in Korea. (Photo by Bert Hardy/Picture Post/Getty Images). August 1950

This 1950s photo provided by the Estate of Vivian Maier and John Maloof Collection shows Maier in a self-portrait as she looks into a storefront wearing a hat in New York. New research about Maier shows the enigmatic Chicago nanny was obsessive about honing her skills as a photographer starting in 1950. (Photo by Vivian Maier/Estate of Vivian Maier and John Maloof Collection via AP Photo)