The Grand Canyon becomes a national park, Michael Jackson's "Thriller" album hits No. 1, a truck bomb explodes under the World Trade Center, and teenager Trayvon Martin is shot and killed, all on this day.
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National Media Museum
1909: Kinemacolor, the first successful color motion picture process, is first shown to the general public at the Palace Theatre in London. The two-color additive color process photographed and projected a black-and-white film behind alternating red and green filters, but proved to costly for theaters to adapt and fell out of favor by the end of 1914.