Thrissur is a city situated in central Kerala state, India. It is the headquarters of Thrissur District. It is known as the 'cultural capital of Kerala'. The city is also a major financial and commercial hub. It is famous for the Thrissur Pooram (festival) and has a large number of well-known temples. Till early 1990s it had been officially called Trichur, which was its English name given since the British colonial period.
Thrissur has traditionally been a centre of learning. With the decline of Buddhism and Jainism due to the growing supremacy of Brahminism during the revival of Hinduism, Thrissur became an important centre of Sanskrit learning. It is believed that the great Hindu saint, Adi Shankara, was born in answer to the prayer made by Arayambal and Sivaguru at Vadakkunnathan temple. Sankara's disciples Hastamalaka, Thotaka, Padmapada and Sudhachara established four Madoms in the city, namely the Northern Madom, the Middle Madom, the In-Between Madom and the Southern Madom, respectively. Thrissur had been visited by other religious icons like Swami Vivekananda and St. Thomas. Sree Narayana Guru, who fought against the caste system in Hindu religion, founded his first temple in Koorkanchery.
In 1790, Raja Rama Varma, popularly known as Sakthan Thampuran, ascended the throne of Cochin. Raja Rama Varma re-built Thrissur from destruction after attacks from Tipu Sultan's army, clearing the magnificent teak forest around the Vadukunathan Temple. Sakthan Thanpuran is hence known as the architect of Thrissur town. For a brief period, Thrissur was the capital of the Kochi kingdom and gained prominence. The Shaktan Thampuran palace was the abode of the Cochin king. Sakthan Thampuran shifted his residence to Thrissur because of its salubrious climate and for safety from the depredations of the naval powers of the West. Sakthan Thampuran settled several Syrian Christian families in the town from their business centres in adjoining areas. Soon Thrissur was built into a flourishing centre of internal trade in Kerala.
Thrissur has played a significant part in the political history of South India. During the Civil Disobedience Movement of 1921, several people from the city took active part and courted arrest. Thrissur district can also claim the honour of having been in the forefront of the countrywide movement for temple entry and abolition of untouchability.