Sure, here are the three related terms:
Puritan - A Protestant who wanted to reform the Anglican Church.
Separatist - A Protestant who wanted to leave the Anglican Church and found a new church.
Pilgrim - A person who embarks on a journey for religious purposes.
The Puritans were a group of Protestants who believed that the Anglican Church was still too Catholic. They wanted to create a church that was more pure and biblical. In 1620, a group of Puritans sailed from England to America and founded the Plymouth Colony.
The Separatists were a group of Puritans who were even more radical than the Puritans. They believed that the Anglican Church was completely corrupt and that it was necessary to leave it altogether. In 1630, a group of Separatists sailed from England to America and founded the Massachusetts Bay Colony.
The Pilgrims were a group of Separatists who were fleeing religious persecution in England. They sailed to America in 1620 on the Mayflower and founded the Plymouth Colony.
The three terms are related because they all involve people who were trying to reform the Anglican Church or find a new church that was more in line with their religious beliefs. The Puritans, Separatists, and Pilgrims were all motivated by their faith, and they all made significant contributions to the development of American society