Geoffrey Chaucer,
Chaucer's Works (ed. Skeat) Vol…
(1900)
“ The words "since March began" are parenthetical; and we are, in fact, told that the whole of March, the whole of April, and two days of May were done with. March was then considered the first month in the year, though the year began with the 25th, not with the 1st; and Chaucer alludes to the idea that the Creation itself took place in March. The day, then, was May 3, with the sun past 21 degrees of Taurus. The hour must be had from the sun's altitude, rightly said (l. 4389) to be Fourty degrees and oon. I use a globe, and find that the sun would attain the altitude 41° nearly at 9 o'clock. ”
