Because they milled flour and shipped it to other colonies.
The middle Colonies were known as the "Breadbasket Colonies" because of their large exports of grains to other colonies and Europe.
The Breadbasket
The Middle Colonies.
the middle colonies had rich soil : )
breadbasket
the middle colonies had rich soil : )
its the middle colonies.
the middle colonies
The Middle Colonies: New York, New Jersey, Pennsylvania, Delaware.
The middle colonies.
the middle colonies
The middle colonies, so all the states in that region were considered the breadbasket of the nation.