Slot machines are always fun to play on however are we really aware of the roots of this exciting game? Back in the days that is in the 20th century, the term slot machines was firstly used for all automatic vending machines. It was only in 1985 that the first ever slot machine was designed, known as Liberty Bell, a mechanical machine with 3 spinning reels. The land-based game was quite standard thus the introduction of symbols; diamond, spade and hearts. The creator behind this slot machine was Charles Fey.