Progressive Jackpots didn't really start to become a thing until casino machines could begin communicating with each other. When the first RNG generators came out in the 1980s, casinos began to experiment with the format. It’s safe to say that this experiment was a huge success.
Soon after online casinos broke into the mainstream, progressive jackpots followed suit. It’s safe to say that since their arrival, they’ve far surpassed what is found at land-based casinos, delivering bigger action and more importantly bigger prizes.