Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Perhaps as ancient as mankind itself, the wagering of money or some material value on an event of uncertain outcome with the intent of winning additional money or goods is generally known as gambling. Usually done in specially established facilities or casinos, modern gambling is also keeping pace with modern technologies and increasingly moving to the internet. Learn more about the practice of gambling, casinos, both real and virtual, as well as the most popular games in this book.