Simplify the following text for a Grade 7 native English-speaking person.
Original: Pierce attended school at Hillsborough Center and moved to the Hancock Academy in Hancock at the age of 11 ; he transferred to Francestown Academy in the spring of 1820 .
Simplified: He attended school at Hillsborough Center but then moved to Hancock Academy in Hancock at the age of 11 . After attending school there for five years , he was transferred to Francetown in the spring of 1820 .