When was the word casino coined in history?
Casino is of Italian origin say around the 19th century. Its a facility that accommodates certain types of gambling activities.
What make a casino a casino?
The fact that it caters to gambling in one location. Its a hotel, restaurant, bar and all in the aide of their main business which is gambling. The gaming industry deals with casino's 
Which country has the most casinos in the world?
Hmm thats a tough one but I would have to say the united states. ome casinos are also known for hosting live entertainment 
Are there regulations concerning safe gambling practices in casinos around the world?
There is and thats where the gaming industry comes in to regulate it. Theres debate over whether the social and economic consequences of casino gambling outweigh the initial revenue