The European calendar mandated by Pope Gregory in 1583 is the only world calendar that did not intercalate at least two celestial cycles.
The European calendar mandated by Pope Gregory in 1583 is the only world calendar that did not intercalate at least two celestial cycles.
欧洲历法被教宗格里高利于1583年指定为唯一的世界历法，至少没有插入两个天体循环。