It is interesting to mention that the casino establishment was built in the place of the famous Delphi Automotive, a major employer that failed to maintain business in 2007. The Ohio gambling laws are gambling-friendly, which makes it a preferred state for casino and betting enthusiasts. With that legalization, four cities were allowed to build their casinos: Columbus, Cleveland, Toledo and Cincinnati. The place opened its door in 2012, after the official legislation of gambling in the state in 2009. Overall Information About Hollywood Casino Columbus in Ohioīefore we get to the details, it will be a good idea if you get familiar with some more general information about the Hollywood Casino in Columbus, Ohio.