My brother in law owns a brewery, or a business that makes and sells beer.
How many different kinds do they make?
Many different kinds! Before breweries, the production of beer took place at home and was deemed to be women's work if you can believe it!
I think I have heard that before about it being a woman's job. That is pretty crazy.
Commercial brewing of beer has been around since 2500 BC! 
I wonder how it was discovered or first created>
In ancient Mesopotamia, brewers derived social sanction and divine protection from the goddess Ninkasi.
That was a long time ago. Who discovered it?