- 1571 – The Royal Exchange opens in London.
- 1849 – Elizabeth Blackwell is awarded her M.D. by the Geneva Medical College of Geneva, New York, becoming the United States’ first female doctor.
- 1855 – The first bridge over the Mississippi River opens in what is now Minneapolis, Minnesota, a crossing made today by the Father Louis Hennepin Bridge.
- 1957 – American inventor Walter Frederick Morrison sells the rights to his flying disc to the Wham-O toy company, who later rename it the “Frisbee”.