Wikislippy:Selected anniversaries/April 28
From Wikislippy
April 28:
- 1932 - A vaccine for yellow fever is announced for use on humans.
- 1950 - Jay Leno, American comedian and television host, is born.
- 1952 - Dwight D. Eisenhower resigns as Supreme Commander of NATO.
- 1967 - Expo 67 opens to the public in Montreal, Quebec, Canada.