Why did 10 days disappear in October in 1582?
In 1582, people went to bed on the 4th and woke up on the 15th.
Social media users have noticed a strange feature in the iPhone calendar. If you scroll through the dates back to 1582, you will notice that after October 4, October 15 immediately follows – there are simply no 10 days between them. It turned out that this was not a mistake, because those days did not exist. In 1582, people went to bed on the 4th and woke up on the 15th.
As IFLScience explained, the Catholic Church adopted the Gregorian calendar in October 1582. Before this, most of Europe used the Julian calendar, introduced by Julius Caesar in 45 BC. They are very similar, but there is a nuance. The Julian calendar adds a day to the calendar every 4 years during a leap year. However, the Gregorian calendar does the same thing unless the year is divisible by 100 or divisible by 400.
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