In 1968, Sen. Robert F. Kennedy was shot and mortally wounded after claiming victory in California’s Democratic presidential primary at the Ambassador Hotel in Los Angeles; assassin Sirhan Bishara Sirhan was arrested at the scene.

In 1975, Egypt reopened the Suez Canal to international shipping, eight years after it was closed because of the 1967 war with Israel.

In 1976, 14 people were killed when the Teton Dam in Idaho burst.

In 1981, the Centers for Disease Control reported that five men in Los Angeles had come down with a rare kind of pneumonia; they were the first recognized cases of what later became known as AIDS.

In 2020, Minneapolis banned chokeholds by police, the first of many changes in law enforcement practices to be announced in the aftermath of George Floyd’s death; officers would also now be required to intervene any time they saw unauthorized force by another officer.