The ethnic makeup of Lao consists of 53.2% Lao, 11% Khmou, 9.2% Hmong, and countless other ethnic groups.
The major religion in Laos is Theravada Buddhism much like its neighboring countries and thus many celebrations revolve around Buddhism. The biggest event is Lao New Years also known as Pi Mai which is held for three days during April, the start of the monsoon season (beginning April 13th or 14th and ending on the 15th or 16th). The first day of the celebration is considered the last day of the year where houses and villages are cleaned. It is a day of renewal that is symbolized by water where water is thrown on family, friends, and strangers to symbolize the washing away of sins committed in the last year. According to the Official Tourism page of Laos, in the recent years, water is shot through water guns or thrown from buckets which creates an unavoidable water fight nationwide.