people with diabetes. 1923 – Racially motivated Nihon Shōgakkō fire lit by serial arsonist in kills 10 children in Sacramento, California. 1936 – First day of the Arab revolt in Mandatory Palestine. 1941 – In the Belfast Blitz, two hundred bombers of the German Luftwaffe attack Belfast, killing around one thousand people. 1942 – The George Cross is awarded "to the island fortress of Malta" by King George VI. 1945 – Bergen-Belsen concentration camp is liberated. 1947 – Jackie Robinson debuts for the Brooklyn Dodgers, breaking baseball's color line. 1952 – First flight of the Boeing B-52 Stratofortress. 1955 – McDonald's restaurant dates its founding to the opening of a franchised restaurant by Ray Kroc, in Des Plaines, Illinois. 1960 – At Shaw University in Raleigh, North Carolina, Ella Baker leads a conference that results in the creation of the Student Nonviolent Coordinating Committee, one of the principal organizations of the civil rights movement in the 1960s. 1969 – The EC-121 shootdown incident: North Korea shoots down a United States Navy aircraft over the Sea of Japan, killing all 31 on board. 1970 – During the Cambodian Civil War, massacre of the Vietnamese minority results in 800 bodies flowing down the Mekong river into South Vietnam. 1986 – The United States launches Operation El Dorado Canyon, its bombing raids against Libyan targets in response to a discotheque bombing in West Germany that killed two U.S. servicemen. 1989 – Hillsborough disaster: A human crush occurs at Hillsborough Stadium, home of Sheffield Wednesday, in the FA Cup Semi-final, resulting in the deaths of 97 Liverpool fans. 1989 – Upon Hu Yaobang's death, the Tiananmen Square protests of 1989 begin in China. 1994 – Marrakesh Agreement relating to foundation of World Trade Organization is adopted. 2002 – Air China Flight 129 crashes on approach to Gimhae International Airport in Busan, South Korea, killing 129 people. 2013 – Two bombs explode near the finish line at the Boston Marathon in Boston, Massachusetts, killing three people and injuring 264 others. 2013 – A wave of bombings across Iraq kills at least 75 people. 2014 – In the worst massacre of the South Sudanese Civil War, at least 200 civilians are gunned down after seeking refuge in houses of worship as well as hospitals. 2019 – The cathedral of Notre-Dame de Paris in France is seriously damaged by a large fire. 2021 – A Mass shooting