history lesson review 45

hops: hops are like beer it has been spoiled for 500 years. and every year people all together spend around 1 billon dollars it has been around for 600 years. gunpowder: gunpowder has made guns shoot cannons shoot and etc. people say if technlogy did not make gunpowder useless guns would be more powerful. gunpowder is used for explodives in mining or war.