In this August 7, 1974, file photo, Philippe Petit, a French high wire artist, walks across a tightrope suspended between the World Trade Center's Twin Towers in New York. Petit and his companions surreptitiously strung a wire between New York City's recently constructed World Trade Towers on Aug. 6, 1974, and Petit walked across it the next day. He danced, strutted and clowned around for 45 minutes as startled bystanders watched from 110 stories below. The Frenchman's stunt is the subject of the 2008 documentary "Man on Wire" and the 2015 film “The Walk”, starring Joseph Gordon-Levitt. (Photo by Alan Welner/AP Photo)





Imre Petnehazy of Hungary, racing a mount strange to him failed to leap the 14th of 15 jumps in the 5000-meter cross country equestrian event, August 2, 1932. Neither rider or mount was seriously injured. (Photo by John Thomas Burns/AP Photo)





Survivors of the battle of the Somme on July 2, 1966 at a reunion in France marking 50 years since the beginning of the battle. (Photo by David Newell-Smith/GNM Archive/The Observer/The Guardian)





A London telephone operator demonstrates a special gas mask, equipped with built-in microphone and earpieces so that she could continue work even in the event of an air or gas raid. Here she punches a time clock. The demonstration took place at the Faraday Building trunk exchange, London, on August 3, 1938. (Photo by AP Photo)





Buddy Ebsen, as Jed, talks to Donna Douglas, playing his daughter Elly May, as she milks a goat on a Beverly Hills tennis court during filming of the television comedy series “The Beverly Hillbillies” on August 9, 1962. A chicken is perched on the goat's back. (Photo by AP Photo)





Tiny natives of Guam hold home-made American flags made by their mothers from parts of dresses while in custody of the Japanese, August 10, 1944. The children waved the flags when the Yanks moved in. (Photo by Joe Rosenthal/AP Photo)





The New York Zoological/National Geographic bathysphere is lowered into the Atlantic Ocean, eight miles off St. Georges, Bermuda, August 11, 1934. (Photo by AP Photo)





French soldiers driving American tanks from an LST onto a beach somewhere in Normandy on August 15, 1944. The tanks were later driven along the Normandy beach by the same soldiers. (Photo by Peter J. Carroll/AP Photo)





An adult black bear falls amid a hail of sparks from a power pole in Albuquerque, N.M. August 15, 1989 after being tranquilized by State Game and Fish department officers, who drew criticism for failing to shut off power or provide a net for the plummeting bear. The mother bear, who had been searching for her lost cub, survived the fall. (Photo by AP Photo)





Charles Manson is shown going to court, August 18, 1970. (Photo by George Brich/AP Photo)





A French woman, accused of being a German sympathizer, is marched along a road past an American heavy tank followed by two armed French partisans on August 19, 1944. She is being taken to Pre en Pail, France, there to be shorn of her hair. (Photo by AP Photo)





New York City police surround a small Brooklyn branch bank, August 22, 1972, ready with arms behind a tree as two gunmen who described themselves as homosexuals, hold eight hostages inside the bank. The incident which began as a bank robbery was quickly cut off as some 200 policemen swarmed the scene. (Photo by Dave Pickoff/AP Photo)





On the verge of death from starvation, this decrepit and emaciated ancient was rescued from his flood-ruined home and brought to a refugee camp at Chengchow, China on August 24, 1938 to be fed and strengthened before being sent westward with other flood and war victims. (Photo by AP Photo)





A Parisian girl hold her hands high in the victory sign as American troops pass through Paris, August 25, 1944 on their way to the front after the French capital was liberated. (Photo by Richard Boyer/AP Photo)





In this June 17, 1967 photo is the scene on the football field at Monterey Peninsula College where over 20,000 people camped during the Monterey Pop Festival in Monterey, Calif. Before Burning Man and Bonnaroo, Coachella and Lollapalooza, Glastonbury and Governors Island, there was Monterey Pop. Fifty years ago in June 2017, the three-day concert in the San Francisco Bay area gave birth to the “Summer of Love” and paved the way for today's popular festivals. (Photo by Monterey Herald via AP Photo)





In this 1965 file photo, a U.S. Air Force B-52 bomber takes off from Guam for a strike against the Viet Cong in Vietnam, 2,200 miles away, during the Vietnam War. The small U.S. territory of Guam has become a focal point after North Korea's army threatened to use ballistic missiles to create an “enveloping fire” around the island. The exclamation came after President Donald Trump warned Pyongyang of “fire and fury like the world has never seen” on Tuesday, August 8, 2017. (Photo by U.S. Air Force via AP Photo)





Howard Hughes waves to the crowd from the back seat of an open car, center, during a welcome parade for the aviator along Broadway in lower Manhattan, July 15, 1938. Hughes and his crew arrived yesterday after completing a flight around the world in less than four days. (Photo by AP Photo)





Corporal Charles Timm of Yonkers, New York, playing with the cat owned by the French family he met while resting on the outskirts of St. Lo, July 25, 1944. (Photo by Sonnee Gottlieb/AP Photo)





French horse Kracovie is presented with new pet goat by American actress Tina Louise at Roosevelt raceway in Westbury, New York, July 7, 1961. Roger Vercruysse, who will drive Kracovie in the international trot at Roosevelt on July 15, watches the presentation. Kracovie was lonely without its French pet goat which was not allowed to enter the United States. (Photo by AP Photo)





New Orleans police officers try to keep their heads down as they move in on a Black Panther headquarters during an exchange of gunfire in New Orleans on September 15, 1970. The shootout occurred as police moved in to make arrests on Tuesday morning following a series of incidents. (Photo by Jack Thornell/AP Photo)