History of Shaving

I shave for the same reason everyone does, or the same reason that every has been since the 4th Century BC - routine. Alexander the Great ordered that all his soldiers shave their beard so no one would grab them during fighting. After that it became the fashion and a sign of civality. Recently, during WWI, our own military began the regulation of men shaving their beards in order that their gas masks have an airtight fit.