Thai Teacher’s Day was firstly held on January 16, 1957 and has been held nationwide since then. Linguistically speaking, ‘wan’ means day, and the word ‘kru’ was adopted from a Pali word ka-ru which means ‘hard or stress.’ Kru, therefore, depicts a highly sacrificing and hard-working career. Compared to English, kru can plausibly be translated as teacher, the one who relatively works hard in both teaching and making students disciplined as well as socially acceptable. The events on Thai Teacher’s Day include a ceremony of paying respect to teacher by chanting a Pali prayer, and activities to strengthen unity among teachers. Religious rites also take part in the Wan Kru celebration such as making food offering to monks and pouring water as a sign of dedication of merit to the departed teachers.