On this day in 1968 Hollywood came up with a rating system for movies. The Motion Picture Association of America came up with a system of ratings that replaced those enforced since the 1930's. Before, movies were heavily censored and film makers couldn't express anything without heavy scrutiny. After these ratings were in place you could see boobies on the big screen!
On this day in 1955 those lousy beatniks gained one of their finest victorys over "the man" when Alan Ginsberg reads his poem "Howl" for the first time. At first it was censored for being obscene, but it is now regarded as a huge step for freedom of speech. Ginsberg used the method of confessional poetry, which was not used often at the time. "Howl" delves into homosexual acts and name dropping (a common theme amongst beats) and delves deep into the personal life of Ginsberg.
On this day in 1913 Henry Ford sets up the first assembly line at his automobile manufacturing plant in Highland Park, Michigan. Workers could produce a car in an hour and a half instead of twelve and a half. This allowed Ford to dramatically reduce the cost of the final product and put the horse out of business, with the exception of dog food, glue, and racing purposes.