The first part of John Bunyan’s allegorical work ‘Pilgrim’s Progress’ was published on this day in British history, 18 February 1678. Though the work was work was published and printed in two separate parts, the first part was licensed and entered in the “Term Catalogue” on 18 February 1678. The Term Catalogue was a serial publication listing book publications as available at book fairs. It is believed that John Bunyan began writing what would become ‘Pilgrim’s Progress’ while he was imprisoned for violations of the Conventicle Act, a law that prohibited the holding of religious services outside the auspices of the established Church of England.