Slot machines are among the most popular games in online casinos around the world. Annually, thousands of players worldwide join and over 70% of profit online casinos earn is precisely from the video slots. History of slot machines is long enough. The first ancestor of modern video slot was invented in 1891 in Brooklyn, New York. Slots were created on click the next page foundation of poker, and contain 50 cards glued on the 5 reels shirts down. layers for the rates used coin and pull the lever, resulting within the rotation of the reels. But since then there was the concept of the payments system, the winner was offered a no cost drink or perhaps a cigar, or another thing. This depended on the institution, which was installed a slot machine. To the player it was challenging to win because the game was to be repaid, and not ruin the institution, often with the drums removed ten peaks and jack of hearts which it was hard to collect Royal Flush.