How did john winthrop change the government of massachusetts?
a. created a colonial legislature
b. established the mayflower compact
c. allowed women to vote
d. allowed company shareholders to vote

Aboard the Mayflower on the way to the colonies, he created the Mayflower Compact which was the first "governing paper" this creating and changing the government of Massachusetts into what was agreed upon by him and his fellow pilgrims aboard. So, B.