Event:
WIPM TV channel 3 in Mayaguez, Puerto Rico (PBS) begins broadcasting
More Notable Events on April 28:
1989 Argentina, hit by rocketing inflation, runs out of money
1967 Muhammad Ali refuses induction into army and stripped of boxing title
1947 Thor Heyerdahl and Kon-Tiki sail from Peru to Polynesia
1934 Franklin D. Roosevelt signs Home Owners Loan Act
1914 W. H. Carrier patents air conditioner
