History of Shaving

The whole history is actually rather lengthy.  There is archaeological evidence that mankind has been removing unwanted hairs for much longer than recorded history-- according to the Encyclopaedia Britannica, "Prehistoric cave drawings show that clam shells, shark’s teeth, and sharpened flints were used as shaving implements..."  Razors made of gold and copper have been found in ancient Egyptian tombs (about 6000 years old).  But the one fact that stuck in my head, much to my dismay, is the idea that the more plebeian Egyptians, the ones who couldn't afford the fancy razors, removed their problematic hair via pumice stones.  I have to admit, I'm having trouble finding a really authoritative source for this story, but it seems pretty persistent-- I've seen it on quite a number of non-authoritative sites.  Also, ow.

Sources:
http://www.moderngent.com/history_of_shaving/history_of_shaving.php
http://www.ehow.com/facts_5340337_history-behind-women-shaving-legs.html

Google Books search for "shaving with pumice stone Egyptians":
The Encyclopedia of Hair: A Cultural History (One reviewer suggested that the bibliography is "sparse".)
Cory's Ancient Fragments of the Phoenician, Carthaginian, Babylonian, Egyptian and other authors is a bit better, although a touch random.  At least it feels a little more authentic.