On this day: November 1

Published On: Nov 01 2012 12:34:18 AM CDT   Updated On: Nov 01 2015 01:00:00 AM CST

The Sistine Chapel's ceiling is unveiled, the National Weather Service makes its first forecast, the U.S. explodes its first hydrogen bomb, and Honda opens its first U.S. factory, all on this day.

OTD November 1 - MPAA ratings
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1968: The Motion Picture Association of America's voluntary film rating system is officially introduced, originating with the ratings G (General Audiences), M (Mature Audiences), R (Restricted) and X (Adults Only). The M rating would be changed to a "GP" rating in 1969 and then finally "PG" in 1970. The PG-13 rating was added in 1984, with the NC-17 rating replacing the unofficial X rating in 1990.

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