The solar calendar in use throughout most of the world, sponsored by Pope Gregory XIII in 1582 as a corrected version of the Julian calendar. See table at calendar.

格列高利历，公历：世界绝大部分通用的阳历，由教皇格列高利十三世于1582年倡导使用，为朱利安历法的改进版。

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There were three rival claimants to the papal throne at that time - the Roman Pope Gregory XII, the Avignon Pope Benedict XIII, and the Antipope John XXIII.

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The so-called Meridian Hall, created to verify the accuracy of the calendar Pope Gregory XIII promulgated in 1582, is in the Vatican Secret Archives, which hold some 10m documents stored by the papacy over the past 1, 200 years.

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Before the Revolution, Russia had not yet adopted the Gregorian calendar, introduced by Pope Gregory XIII in 1582 to mitigate the errors of the Julian calendar, which owes its name to the Roman emperor who had chosen it 46 years before the birth of Jesus Christ.

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