william wrigley jr.?

Question

why is he considered an entrepreneur?

Answer 1

He sold chewing gum, lots and lots of chewing gum.

Here's more on the Chewing Gum magnate:
(really good bio)
http://www.stfrancis.edu/ba/ghkickul/stuwebs/bbios/biograph/wrigley.htm

http://www.wrigley.com/wrigley/about/about_story_wm_wrigley_jr_bio.asp
http://en.wikipedia.org/wiki/William_Wrigley_Jr.