A disputed association between April 1 and foolishness is in Geoffrey Chaucer's The Canterbury Tales (1392). In the "Nun's Priest's Tale", a vain cock Chauntecleer is tricked by a fox on Syn March bigan thritty dayes and two. Readers apparently understood this line to mean "32 March", i. e. April 1.  However, it is not clear that Chaucer was referencing April 1, since the text of the "Nun's Priest's Tale" also states that the story takes place on the day when the sun in the signe of Taurus had y-runne Twenty degrees and one, which cannot be April 1. Modern scholars believe that there is a copying error in the extant manuscripts and that Chaucer actually wrote, Syn March was gon. If so, the passage would have originally meant 32 days after March, i. e. 2 May, the anniversary of the engagement of King Richard II of England to Anne of Bohemia, which took place in 1381.