History of Postal system

	Revision 2 . . November 6, 2001 7:27 am by Stephen Gilbert [Mentioning the word "mail"]
	Revision 1 . . September 26, 2001 2:33 pm by Simon J Kissane

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System for transporting paper messages, and also small packages containing other matter, around the world.

The postal system is a system for transporting paper messages, and also small packages containing other matter, around the world. Anything sent through the postal system is called mail?.