Thrissur (formerly Trichur) (Malayalam: [t̪riʃ(ː)uːr] (listen)), is one of the 14 districts in the Indian state of Kerala. It is situated in the central part the state. Spanning an area of about 3,032 km2 (1,171 sq mi), Thrissur district is home to over 9% of Kerala's population. Thrissur district is bordered by the districts of Palakkad and Malappuram to the north, and the district of Ernakulam to the south and Coimbatore to the east. The Arabian Sea lies to the west and Western Ghats stretches towards the east. It is part of the historical Malabar Coast, which has been trading internationally since ancient times. The main language spoken is Malayalam. Thrissur district was formed on 1 July 1949, with the headquarters at Thrissur City. Thrissur is known as the cultural capital of Kerala, and the land of Poorams. The district is known for its ancient temples, churches, and mosques. Thrissur Pooram is the most colourful temple festival in Kerala.