Today in history: Calgary learned it would be an Olympic host city

On this day, Sept. 30, in history:

In 1399, King Henry IV ascended the throne of England. He had usurped the crown from Richard II, beginning the Lancastrian dynasty and planting the seeds of the Wars of the Roses.

In 1846, ether was used as an anesthetic for the first time. Dr. William Morton, a Massachusetts dentist, used the gas experimentally to make Eben Frost unconscious so he could extract an ulcerated tooth.