The Mayflower Compact, originally titled Agreement Between the Settlers of New Plymouth, was the first governing document of Plymouth Colony. It was written by the men aboard the Mayflower, consisting of Separatist Puritans, adventurers, and tradesmen. Although the agreement contained a pledge of loyalty to the King, the Puritans and other Protestant Separatists were dissatisfied with the state of the Church of England, the limited extent of the English Reformation and reluctance of King James I of England to enforce further reform.

Of Plymouth Plantation is a journal that was written over a period of years by William Bradford, the leader of the Plymouth Colony in Massachusetts. It is regarded as the most authoritative account of the Pilgrims and the early years of the colony which they founded.