Colombo is the largest city and commercial capital of Sri Lanka. It is located on the west coast of the island and adjacent to Sri JayawardenapuraKotte, the capital. Colombo is a busy and vibrant city with a mixture of modern life and colonial buildings and ruins and a city population of 647,100. The Colombo Metropolitan Region, Due to its large harbour and its strategic position along the East-West sea trade routes, Colombo was known to ancient traders 2,000 years ago.
However it was only made the capital of the island when Sri Lanka was ceded to the British Empire in 1815, and its status as capital was retained when the nation became independent in 1948. In 1978, when administrative functions were moved to Sri JayawardenepuraKotte, Colombo was designated as the commercial capital of Sri Lanka.