The Christian calendar was originally based on the Julian calendar of the Romans.公历最初是以罗马人的儒略历为基础制定的。The Julian calendar was introduced by Julius Caesar and hence carries his name.儒略历是由尤利乌斯・恺撒推行的，因此就沿用了他的名字。The Christian calendar was originally based on the Julian calendar of the Romans.基督教历法最初是基于罗马人的儒略历。