Holi is a Hindu spring festival celebrated in India and Nepal, also known as the "festival of colors" or the "festival of love". The festival signifies the victory of good over evil, the arrival of spring, end of winter, and for many a festive day to meet others, play and laugh, forget and forgive, and repair broken relationships. It is also celebrated as a thanksgiving for a good harvest. It lasts for a night and a day, starting on the evening of the Purnima (Full Moon day) falling in the Vikram Samvat Hindu Calendar month of Phalgun, which falls somewhere between the end of February and the middle of March in the Gregorian calendar.

Holi celebrations start on the night before Holi with a Holika Dahan where people gather, perform religious rituals in front of the bonfire, and pray that their internal evil be destroyed the way Holika, the sister of the demon king Hiranyakashipu, was killed in the fire. The next morning is celebrated as Rangwali Holi – a free-for-all festival of colors, where people smear each other with colors and drench each other. Water guns and water-filled balloons are also used to play and color each other.

Holi is an important spring festival for Hindus, a national holiday in India, a regional holiday in Nepal and other countries. The festival of Holi caught the fascination of European traders and British colonial staff by the 17th century. Various old editions of Oxford English Dictionary mention it.

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