Teams played six or seven exhibition games. In 1966 (and 1960), the NFL had an odd number of franchises, so one team was idle each week. In 1978, the league changed the schedule to include sixteen regular season games and four exhibition games. From 1978 through 1989, the sixteen games were played over sixteen weeks.
At 5:36 p.m. on March 27, 1964, a 9.2-magnitude earthquake erupted 78 miles east of Anchorage, Alaska. The earthquake remains the most powerful earthquake to strike North America, and the second-largest earthquake ever measured.
Today in science: Great Alaska earthquake. The earthquake â centered in Prince William Sound off the coast of south-central Alaska â was the most powerful yet recorded in North America at magnitude 9.2. March 27, 1964.