May 4th, 1970. A protest against the Vietnam War turns deadly at Kent State University in Ohio that’s where national guardsmen open fire on antiwar students after the United States invades Cambodia. Four students are killed, nine others are wounded in the shootings, sparking further unrest on America’s campuses. 1979. Margaret Thatcher becomes Britain’s first female prime minister. That happens when the Conservative Party ousts the Labor Party from power in parliamentary elections. “I'll strive unceasingly to try to fulfill the trust and confidence that the British people have placed in me and the things in which I believe.”

1886. In Chicago, a labor demonstration for an eight-hour workday turns into a riot when a bomb explodes at Haymarket Square. The violence kills 7 policemen and injures 60 others.

1961. During the Civil Rights Movement, a group of freedom riders leaves Washington D.C. for New Orleans. They face violence in the South as they challenge racial segregation on interstate buses and the bus terminals.

And 1927. The people who bring it the Oscars, the Academy of Motion Pictures Art and Sciences is founded.

Today in History, May 4th. Camille Bohannon, the Associated Press.