5 Mistakes to Avoid When Playing Slots "Slot devices have an abundant and interesting record that dates back once again to the late 19th century. The first correct slot machine was created by Charles Fey in San Francisco in 1895 and was known as the Liberty Bell. It included three spinning reels and five representations: horseshoes, diamonds, spades, minds, and a damaged Liberty Bell. A new player would pull a lever, and if three...