1870

Approximately 200 Piegan Blackfoot tribe members, mostly women, children and older adults, were slain by U.S. Army troops in Montana in what became known as the Marias Massacre.

1849

Elizabeth Blackwell became the first woman to receive a medical degree in the United States.

1964

The 24th Amendment to the United States Constitution was ratified, prohibiting poll taxes in federal elections.

1986

The Rock & Rock Hall of Fame inducted its first members, including Chuck Berry, Little Richard and Elvis Presley.

– From wire reports