Why is there only three days difference between winter solstice and Christmas?

1. The winter solstice is one of the 24 solar terms, and the 24 solar terms are a solar calendar, which is based on the ecliptic of the sun. It is a supplement to the lunar calendar in the lunar calendar, which means that the lunar calendar is a combination of yin and yang.

Christmas comes from the winter solstice festival in Rome. Because there are several sayings about Jesus' birthday, the orthodox one is in 65438+ 10. Christianity designated it as the winter solstice.

At that time, Christianity adopted the Roman calendar. Because this calendar is not as advanced as ours. At that time, their calculation error had reached three days. So the difference between the winter solstice and Christmas is only three days.

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