Here’s a look at some interesting events that took place on this day in history:

1863 – The Battle of Gettysburg begins (More info)

1943 – Income tax withholding begins in the United States (More info)

1963 – ZIP Codes are introduced for United States mail (More info)

1979 – Sony introduces the Walkman, the first device that allowed people to carry music with them and listen through lightweight headphones (More info)

1987 – New York radio station WFAN is launched as the world’s first all-sports radio station (More info)

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