Once upon a time in the late 1800s a Californian mechanical engineer who went by the name of Charles D. Fey created his signature gambling game, the Liberty Bell slot machine. This was widely recognized as the first commercially successful slot machine ever, and if it was not for Mr. Fey’s crucial pioneering work in the field of slot machine gambling, we’re not sure the modern online slots industry would be nearly as big. Of course, we’re not saying that Charles D. Fey ever meant for the online slots industry to happen. In fact, we’re pretty sure he would faint with surprise if somebody showed him the hyper-modern, online equivalents of his humble Liberty Bell slot. Regardless, online slots and UK slots are all the rage right now; you only have to read this review of JeffBet to see how online casinos work so well to encourage new and existing members with promotions, bonuses, and rewards programs. It definitely pays to…