Month of December. Anglo-Saxon calendar page for December, showing men threshing and winnowing grain from crops. At lower right, a representation of the birth sign Sagittarius is in a roundel. The text below the illustration is in Latin, with Roman numerals. This calendar includes details of the lunar phases: the kalends (kl, full to new Moon), the nones (n, new Moon to first quarter), and the ides (id, first quarter to full Moon). In the Anglo-Saxon calender, the moon in February was called the 'Moon After Yule'. Full Moon falls here on 13 December. It is thought that this calendar was produced in Winchester, England, in the period around 1030.