Simplify the following text for a Grade 9 native English-speaking person.
Original: John Batman ( 21 January 1801 â `` 6 May 1839 ) was an Australian grazier , businessman and explorer who is best known for his role in the founding of a settlement which became Melbourne and the colony of Victoria .
Simplified: John Batman ( 21 January 1801 â `` 5 May 1839 ) was an Australian farmer and businessman who was one of the first white people to live in Melbourne .