The Chinese gender prediction charts utilize the lunar calendar and a special formula ... "cfDNA screening for fetal sex is technically possible as early as six or seven weeks gestation," says ...

It is a special topic site museum of nature science displaying Chinese ancient astronomical equipment ... you the abundant calendars and important calendar reforms in China; the Shadow Observation ...

The upcoming Year of the Rabbit according to the Chinese lunar calendar, which starts on Jan 22, reminds Turks of one of their ancient rituals that have sunk into oblivion with modernisation.

falls on the second day of the second month on the traditional Chinese calendar every year, and recognizes the start of spring and farming. This year it falls on March 1. Ancient people believed ...