KnowraChristopher ClaviusLinked fromLinked fromThe 5 pages that link to Christopher Clavius, each with the reason it gives.All 5Related 5Gregorian calendarRelated: His writings made the reform’s astronomical and mathematical rationale explicit.Pope Gregory XIIIRelated: He helped calculate, publish, and justify the reform issued under Gregory.Matteo RicciRelated: Clavius's teaching gave Ricci mathematical and astronomical knowledge useful in China.History of calendarsRelated: His calculations and writings supported acceptance of the new calendar.Jost BürgiRelated: Clavius represents the mathematical astronomy and numerical practice contemporary with Bürgi.