教皇格里高利三世将11月1日定为万圣节，以此纪念圣人和殉道者。

Pope Gregory III designated November 1st as All Saints' Day, a time to honor saints and martyrs.

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他的格里高利历法（公历）中将太阳年定为365.2425天，教皇从而修正了确定闰年的规则：同时被100和400整除的年份还是闰年。

The pope thereby amended the rule for determining leap years: A year divisible by 100 is only a leap year if it is also divisible by 400.

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1972年被教皇册封为圣格里高利骑士指挥官。

In 1972 he was made a Knight Commander of St.

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