Calendar for October 1582

The calendar of October in 1582 goes directly from the 4th to the 15th, with no intervening ten days.

The ten days from October 5 to October 14, 1582 did not exist in history, because the old calendar at that time was already ten days different from the actual time when the earth rotated to the vernal equinox, and it was promulgated at this time With the new Gregorian calendar, these ten days were numerically skipped to correct the date error.

At first, the British did not follow this policy and continued to use their own calendar, which was different from the European time concept. However, after a long time, they could not bear it anymore, and finally had no choice but to use the law to force it. The extra days were erased. Regarding this incident, it actually had little impact on our country's Ming Dynasty. It was the tenth year of Wanli Emperor Shenzong of Ming Dynasty. Because our ancestors had their own way of counting dates at that time, the people were not greatly affected.

The reason why the calendar of 1582 had ten fewer days in October:

In 1582, with the development of astronomical observation technology, people in the West discovered that the vernal equinox had changed from March 21 It arrived on March 11th, a full ten days earlier than previously calculated. At that time, Pope Gaury XIII felt that this situation could not continue, so he recruited a large number of astronomers to form a committee, and finally everyone determined one of the more appropriate plans, which determined a year to be 365.2425 days. Although this plan still has errors, it is much better than before.

The error problem has been relatively solved, but what to do with the ten days difference? Astronomers directly made a suggestion to the Pope to erase these ten days. Although it sounds very imprecise, but There was really no other way, and the Pope then forcibly ordered the removal of these ten days. That is, after October 4, 1582, it jumped directly to October 15. Although it disrupted people's lives and caused them to complain, the error was finally eliminated.