Although Qingming jie is an ancient Chinese holiday to commemorate the dead, it was only last December that the Chinese government made Qingming an official holiday. From China Daily:
Some 600,000 people visited graveyards in the suburbs of Chinese capital Beijing on Friday, about triple last year’s figure of 189,000, according to official statistics.
On December 16, the State Council (cabinet) revised the nation’s official holiday schedule to add three traditional festivals — Qingming, Duanwu and Zhongqiu — in response to public calls. It also changed the length of other holidays.The holiday marked on Friday was Qingming, or grave-sweeping day.
The change was intended to allow more people to pay their respects to deceased relatives on what would otherwise be a workday like Friday. No national figures on this year’s tomb visits were immediately available.