Calendar reform
(1,640 words)

1. Background

The Christian calendar, a hybrid of solar and lunar reckoning, combines two functions. First, it serves the reckoning of time (Time, reckoning of) on an astronomical basis (date reckoning). Secondly, it facilitates the reckoning of religious festival. In Christian chronology and computus (the science of calendar reckoning), it was vital to have as astrono…

Cite this page
Koller, Edith, “Calendar reform”, in: Encyclopedia of Early Modern History Online, Executive editor of the English edition: Graeme Dunphy. Consulted online on 24 March 2018 <>
First published online: 2015
First print edition: 20160907

▲   Back to top   ▲