Bengal Gazette, founded in 1780, is considered one of the oldest newspapers in India and was published from Kolkata.

The Howrah Bridge was designed by British engineer Sir Bradford Leslie and is a cantilever bridge completed in 1943.

West Bengal's high population density is due to its strategic geographic location, fertile agricultural land, proximity to major trade routes, and historical development as a commercial hub.

Gorumara National Park is known for its bird sanctuary and wildlife conservation efforts, home to various endangered species including elephants and rhinoceros.

North Bengal comprises 7 districts: Darjeeling, Jalpaiguri, Cooch Behar, Alipurduar, Siliguri, Kalimpong, and Uttar Dinajpur.

The Pala Empire, an important Buddhist dynasty, had Nalanda and later Gaur as significant centers. Gaur was an important city in this region.

The Ajay River flows through the Birbhum and Burdwan districts and is an important tributary of the Ganges River.

Chandernagore was a French colony until 1954, when it was integrated into India and became part of West Bengal.

West Bengal currently has 25 administrative districts after recent reorganizations and divisions, making it one of the larger states administratively.

While Nalanda was not in West Bengal but in Bihar, Jadavpur and Presidency Universities in Kolkata have significant historical importance. The question likely refers to the ancient Buddhist heritage sites in the region.