Simplify the following text for a Grade 10 native English-speaking person.
Original: John Macarthur ( 1767 â `` 11 April 1834 ) was a soldier , entrepreneur , politician and pioneer of the Australian wool industry .
Simplified: John Macarthur ( 1766 â `` 11 April 1834 ) was a soldier , business man , politician and the man who started the Australian wool industry .