DE UNIVERSIT.

in the seventh month, when the sun was established in the first degree, the world was founded, because equality is prior to inequality, and the similar part is prior to the dissimilar. Whence it is certain that, by observation, the Sun has gradually slipped from the beginning of April or the first month to the 25th of March or the twelfth, from which it has gradually come from the 25th to the 10th day in 1400 years. Therefore, all things must be returned to their places. Furthermore, the beginning of a day should in truth be taken from midnight when the Sun ascends; that of the night, however, when it descends. Moreover, there are weeks of days, weeks, months, and years in the sacred books, about which I speak elsewhere. Days must also be called first, second, third, etc., with fables and feast days discarded, so that all things may be restored. Furthermore, the corrected year consists of 365 days, 5 hours, 45 minutes, and 24 seconds; thus there was an error of one day every 106 years, because