Here is a list of things which happened on the 19th of August over the years:
Salem witch trials: in Salem, Massachusetts, Province of Massachusetts Bay five people, one woman and four men, including a clergyman, are executed after being convicted of witchcraft. (1692)
California Gold Rush: the New York Herald breaks the news to the East Coast of the United States of the gold rush in California (although the rush started in January). (1848)
The first All-American Soap Box Derby is held in Dayton, Ohio. (1934)
A plebiscite in Germany approved the vesting of sole executive power in Adolf Hitler ym”s as Fuhrer. (1934)
Vietnam War: Viet Minh led by Ho Chi Minh take power in Hanoi, Vietnam. (1945)
In the Northeast United States, severe flooding caused by Hurricane Diane, claims 200 lives. (1955)
Cold War: in Moscow, downed American U-2 pilot Francis Gary Powers is sentenced to ten years imprisonment by the Soviet Union for espionage. (1960)
Saudia Flight 163, a Lockheed L-1011 TriStar burns after making an emergency landing at King Khalid International Airport in Riyadh, Saudi Arabia, killing 301 people. (1980)
Collapse of the Soviet Union, August Coup: Soviet President Mikhail Gorbachev is placed under house arrest while on holiday in the town of Foros, Crimea. (1991)
Hurricane Bob hits the Northeast. (1991)
A Hamas planned suicide attack on a bus in Jerusalem kills 23 Israelis, 7 of them children in the Jerusalem bus 2 massacre. (2003)
Internet search engine Google went public. (2004)