On this day: November 1

POSTED: 1:34 AM Nov 01 2012   UPDATED: 2:00 AM Nov 01 2013

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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MPAA

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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