Was the lunar calendar invented by the Babylonians in Cuba or by China in ancient times?

The lunar calendar was invented by ancient Babylonians.

The lunar calendar, also called lunar calendar, is a calendar based on the changes of the full and short periods of the moon.

The calculation of lunar calendar is only 0.4 seconds away from the current belt; He also made a calendar, according to the moon's profit and loss, positioning a month on the 29th or 30th, and knew how to set a leap.

In the 20th century ~18th century BC, Babylonia established the lunar calendar according to the period of the moon's rotation around the earth, which is not only the same as the lunar calendar used in the Xia Dynasty in China, but also set a leap month every 2 ~ 3 years. The two are exactly the same.

Extended data:

Each calendar month of the lunar calendar is approximately equal to the new moon, and any date of each month contains the meaning of the moon phase. The calendar year is 12 months, with 354 days in a normal year and 355 days in a leap year.

The pure lunar calendar can accurately reflect the change of the moon phase, but it can't judge the season according to its month and date, because its Gregorian calendar year has nothing to do with the tropic year.

From a global perspective, people first used the lunar calendar because the cycle of the lunar month is easier to determine than the cycle of the tropic year. Later, we learned about the Tropic of Capricorn, and for the needs of agricultural production, we changed it to the solar calendar or the yin and yang calendar.