Piers Plowman (written c. 1370–90) or Visio Willelmi de Petro Ploughman (William's Vision of Piers Plowman) is a Middle English allegorical narrative poem by William Langland. It is written in un-rhymed, alliterative verse divided into sections called passus (Latin for "step"). There exist three distinct versions of the poem, which scholars refer to as the A-, B-, and C-texts. The B-text is the most widely edited and translated version; it revises and extends the A-text by over four thousand lines.