CIIC:Selected anniversaries/April 20
From Wiki China org cn
429: Zu Chongzhi, a prominent Chinese mathematician during the Southern and Northern Dynasties period (420-589), was born.
1949: Beijing Film Studio was founded.
429: Zu Chongzhi, a prominent Chinese mathematician during the Southern and Northern Dynasties period (420-589), was born.
1949: Beijing Film Studio was founded.