Here is a list of things which happened on the 30th of July over the years:
Baghdad is founded. (762)
Christopher Columbus lands at Guanaja in the Bay Islands off the coast of Honduras during his fourth voyage. (1502)
Baltimore, Maryland is founded. (1729)
The Staten Island Ferry Westfield’s boiler explodes, killing over 85 people. (1871)
President Franklin D. Roosevelt signed a bill creating a women’s auxiliary agency in the Navy known as Women Accepted for Volunteer Emergency Service, or WAVES. (1942)
World War II: Japanese submarine I-58 sinks the USS Indianapolis, killing 883 seamen. (1945)
A joint resolution of the U.S. Congress is signed by President Dwight D. Eisenhower, authorizing In God We Trust as the U.S. national motto. (1956)
US President Lyndon B. Johnson signs the Social Security Act of 1965 into law, establishing Medicare and Medicaid. (1965)
Vietnam War: US President Richard M. Nixon makes an unscheduled visit to South Vietnam and meets with President Nguyen Van Thieu and U.S. military commanders. (1969)
An All Nippon Airways Boeing 727 and a Japanese Air Force F-86 collide over Morioka, Japan killing 162. (1971)
Watergate Scandal: US President Richard M. Nixon releases subpoenaed White House recordings after being ordered to do so by the United States Supreme Court. (1974)
Jimmy Hoffa disappears from the parking lot of the Machus Red Fox restaurant in Bloomfield Hills, Michigan, a suburb of Detroit, at about 2:30 p.m. He is never seen or heard from again. (1975)
In Mexico, the last ‘old style’ Volkswagen Beetle rolls off the assembly line. (2003)
Ex-Bosnian Serb leader Radovan Karadzic was extradited to The Hague to face genocide charges after nearly 13 years on the run. (2008)