Barack Obama became first incumbent US president to visit Hiroshima Memorial

Barack Obama became the first sitting U.S. president to visit Hiroshima, where he called for a "world without nuclear weapons" during his remarks at the city's Peace Memorial Park.
•    In the Hiroshima museum's guest book before his speech, the President wrote that he hoped the world will "find the courage, together, to spread peace, and pursue a world without nuclear weapons
•    Obama’s visit, the first to Hiroshima by a sitting U.S. president, comes as an acknowledgement from the American leaders towards the suffering of the estimated 140,000 killed during the bombing on Aug. 6, 1945.
•    That figure includes 20,000 Koreans who had been forced by the Japanese military to work in the city for the imperial war machine.
•    Hiroshima Peace Memorial commonly called the Atomic Bomb Dome, in Hiroshima, Japan, is part of the Hiroshima Peace Memorial Park and was designated a UNESCO World Heritage Site in 1996.
•    The ruin serves as a memorial to the people who were killed in the atomic bombing of Hiroshima on 6 August 1945.