1.Chiyambi cha Tsiku la Ntchito
Chiyambi chatchuthi cha Tsiku la Ntchito ku China chimachokera ku Meyi 1, 1920, pomwe ziwonetsero zoyambirira za Meyi Day zidachitika ku China. Chiwonetserochi, chomwe chinakonzedwa ndi bungwe la China Federation of Labor Unions, cholinga chake chinali kulimbikitsa ufulu wa ogwira ntchito komanso kukonza malo ogwira ntchito. Mu 1949, pambuyo pa kukhazikitsidwa kwa People's Republic of China, boma la China lidalengeza kuti Meyi 1 ndi tchuthi chapadziko lonse, zomwe zidalola ogwira ntchito kukhala ndi tsiku lopuma. ndi kukondwerera zomwe adachita. Panyengo ya Cultural Revolution kuyambira 1966 mpaka 1976, tchuthiyi idayimitsidwa chifukwa cha malingaliro a boma motsutsana ndi chilichonse chomwe chimawonedwa ngati mabwinja. Komabe, pambuyo pa kukonzanso kwa 1978, tchuthicho chinabwezeretsedwanso ndipo chinayamba kuzindikiridwa kwambiri.Lero, tchuthi la Tsiku la Ntchito ku China limatenga masiku atatu kuyambira May 1 mpaka May 3 ndipo ndi imodzi mwa nthawi zoyendayenda kwambiri pachaka. Anthu ambiri amapezerapo mwayi pa nthawi yopuma kuti ayende kapena kukacheza ndi mabanja awo. Pazonse, tchuthi cha Tsiku la Ntchito ku China sichimangokhala ngati chikondwerero cha zopereka za ogwira ntchito komanso chikumbutso cha kufunikira kopitiriza kuwongolera mikhalidwe yantchito ndi kuteteza antchito. 'ufulu.