The original manuscript of William Bradford's history, "Of Plymouth Plantation" is returned to the Governor of Massachusetts by the Bishop of London after being taken during the American Revolutionary War.

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.

The journal was written between 1630 and 1651 and describes the story of the Pilgrims from 1608, when they settled in the Dutch Republic on the European mainland through the 1620 Mayflower voyage to the New World, until the year 1647. The book ends with a list of Mayflower passengers and what happened to them which was written in 1651.

William Bradford (c. 19 March 1590 – 9 May 1657) was an English Puritan separatist originally from the West Riding of Yorkshire in Northern England. He moved to Leiden in Holland in order to escape persecution from King James I of England, and then emigrated to the Plymouth Colony on the Mayflower in 1620. He was a signatory to the Mayflower Compact and went on to serve as Governor of the Plymouth Colony intermittently for about 30 years between 1621 and 1657. His journal Of Plymouth Plantation covered the years from 1620 to 1646 in Plymouth.