600 years of "30 days hath September"

All school American children learn the day-counting rhyme "Thirty days hath September...," and some adults still use it to track the number of days in the month. Now a Welsh journalist offers proof that the doggerel dates to the early 15th century. (photo)

After much research, Roger Bryan found the little poem inscribed in English at the bottom of a page in a Latin saints' book in the National Library in Wales in Aberystwyth. He later located a second copy in the Harley Collection. “It’s one of those rhymes we all seem to know and use regularly. It actually started out as Thirty Days Have November. When or why November and September changed places in the rhyme is not known," said Bryan.

The poem reads:

Thirty days hath September,
April, June, and November;
All the rest have thirty-one,
Save February, with twenty-eight days clear,
And twenty-nine each leap year.