1, 1862, the Lincoln administration enacted a recently passed tax of $1 per 31-gallon barrel on “all beer, lager beer, ale, porter and other similar fermented liquors, by whatever name such liquors may be called.” It was the first national excise tax on beer, and it had perhaps the furthest-reaching effect on the drink ...

The first solid proof of beer production comes from the period of the Sumerians around 4,000 BCE. During an archeological excavation in Mesopotamia, a tablet was discovered that showed villagers drinking a beverage from a bowl with straws.

In the United States, Elzinga, Tremblay, and Tremblay (2017) identify 1965, when Fritz Maytag bought the Anchor Brewing Company of San Francisco, as the beginning of the movement.

If you leave unopened beer in a room temperature space it'll likely go bad after four to six months. It won't necessarily be unsafe to drink, but it won't taste as good as it would when it's within it's peak drinking time.