Tibetan astronomy and calendar experts determine the time of spring plowing through the ancient observatory. On March 9, people waited for the sun to illuminate the observatory’s photometric stone at the Dapu Astronomical Observatory in Lhasa, Tibet.
Starting from that day, various parts of Tibet will usher in large-scale agricultural activities such as irrigation and spring plowed. It is reported that Tibetan astronomy and calendrics have a history of more than 2,000 years.