Thingyan is the Myanmar New Year festival that usually occurs in middle of April. According to the history, the first Water Festival is Thingyan as it started during the Kingdom of Tagaung (1st Century CE - 1050 AD) and become widespread and famous during the Kingdom of Bagan (849 AD - 1297 AD). It is a Buddhist festival celebrated over a period of four to five days, culminating in the New Year. The dates of the Thingyan Festival are calculated according to the Burmese calendar. The dates of the festival are observed as public holidays throughout Myanmar, and are part of the summer holidays at the end of the school year. Water-throwing or dousing one another from any shape or form of vessel or device that delivers water is the distinguishing feature of this festival and may be done on the first four days of the festival. The New Year takes place at virtually the same time as the new year celebrations of many countries in South Asia like China (Dai People of Yunnan Province), Laos, Thailand, Cambodia, Nepal, Bangladesh, India, and Sri Lanka.
Thingyan is comparable to other festivities in the region such as the Songkran in Laos, the Songkran in Thailand, the Cambodian New Year, the Sinhalese New Year and the festivals like Vaisakhi (Punjab), Puthandu (Tamil Nadu), Vishu (Kerala) and Bihu (Assam) in India.
The name "Thingyan" (သင်္ကြန်, θɪ́ɰ̃dʑàɰ̃; Arakanese: θɔ́ɰ̃kràɰ̃) is derived from the Sanskrit word saṁkrānti, which means the "transit [of the Sun from Pisces to Aries].". The holiday is known as Sangkran () in Mon and as Sangkyan in Shan (သၢင်းၵျၢၼ်ႇ).
In one of Thervada Jatakas, once upon time, Bodhisattva was born in family of wealthy businessman in rich city of SuvvanaBhumi. The businessman had regular disputes with his brothers and sisters over distribution of ancestor properties. As Bodhisattva grown up, he became very upset over family dispute among his relatives. He tried to convince both parties but he failed. Hence, on day of spring festival in month of Tagu, he arranged a meeting of relatives to settle the dispute over properties.