Monthly Archives: September 2016

The Gregorian Calendar

Sep 28, 2016 | | 1 comment

Introduction Why do the months of the year have different number of days? Why are there 28 days in February but January and March each have 31 days? It has been like this since 45 BC when the Julian calendar replaced the original Roman calendar. If there are 365 days in a year, is it […more]