Who Invented the First Envelope?

Answer

There is no record as of who invented the envelope. However, the history of envelopes record that handmade envelopes were used both domestically and commercially prior to 1845. At around 3500 to 3200 BC, envelopes were moulded as clay spheres.
Q&A Related to "Who Invented the First Envelope?"
A.F. Callahan of Chicago, Illinois, filed a patent for the "window envelope" on June 10, 1902. He described his invention as an envelope which would have holes for viewing
http://www.ehow.com/facts_5040293_invented-window-...
In early 2010 I purchased a property in Exeter,NH from an elderly local real estate agent. I was in the property doing some repairs when she came into the shop to chat. She then begins
http://wiki.answers.com/Q/Who_invented_interoffice...
An envelope is a common packaging item, usually made of flat material such as paper
http://www.chacha.com/question/when-were-envelopes...
I don't think anyone really knows for sure who "invented" the envelope. People have wrapped things for transport for a very long time. Up until 1840 all envelopes were handmade
http://answers.yahoo.com/question/index?qid=200608...
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