Early in 1756, faced with frequent skirmishes with French East India Company forces, the British authorities in Calcutta began repairs to the fortifications of old Fort William, which were extremely decayed.
The remaining wetland, known as East Calcutta Wetlands has been designated a "wetland of international importance" under the Ramsar Convention.
The Royal Calcutta Turf Club (RCTC) holds regular equestrian races and polo matches.
Calcutta Cricket and Football Club is the second-oldest cricket club in the world.
The names Kolkata and Calcutta were probably based on Kalikata, the name of one of the three villages (Kalikata, Sutanuti, Gobindapur) in the area before the arrival of the British.
The estimated population of Calcutta in 1900 had grown to close to one million.
The Kolkata Municipal Corporation (KMC), (formerly the Calcutta Municipal Corporation), established in 1876, is responsible for the civic maintenance and infrastructure of Kolkata.
The Calcutta Polo Club is now considered as the oldest polo club in the world.
Kolkata is India's only remaining city to have a tram network, operated by Calcutta Tramways Company.
On January 2, 1757, Admiral Watson and Robert Clive retook Calcutta with a force of Company sepoys and the assistance of the Royal Navy.
Electricity is supplied by the privately operated Calcutta Electric Supply Corporation (CESC) to the city region, and by the West Bengal State Electricity Board in the suburbs.
The Calcutta Municipal corporation (recently renamed as Kolkata Municipal Corporation) was formed and the city had its first mayor.
Kolkata (then Calcutta) was declared a Presidency City, and later became the headquarters of the Bengal Presidency.
Kolkata has three 18-hole golf courses at the Royal Calcutta Golf Club (the first golf club in the world outside Britain) Tollygunge Club and Fort William.
Kolkata (Bengali: ??????, IPA: 'kolkat?a]), formerly Calcutta, is the capital of the Indian state of West Bengal.
The University of Calcutta (founded in 1857) has more than 200 affiliated colleges.
The Calcutta South Club is the venue for some national and international tennis tournaments.
The Calcutta Rowing Club hosts regular rowing races and training.