Commemorates the 1886 Haymarket affair in Chicago and the international movement for the 8-hour workday. Recognized by the PRC since 1949 as a major public holiday; typically paired with a 小长假 (mini-holiday) of 3-5 days including weekend shifts.
usage
Commonly shortened to 劳动节 or just 五一 (Wǔ-Yī, 'May 1'). 五一黄金周 ('May Day Golden Week') refers to the extended holiday travel period.