At almost 147,570 km2, Bangladesh is the 92nd largest country in the world by area (United Kingdom - 78; South Africa - 24, Russia - 1) but has a population of almost 170 million people (8th). Greater Bengal was known to the Greeks and Romans as Gangaridai, in the area surrounding the Bengal Delta which includes three of Asia's largest rivers (Ganges, Brahmaputra, and Meghna). The roughly 700 rivers in the area attracted dense groups of people acting as a catalyst for language, literature, music, art and architecture. As an ancient seafaring base and part of the Silk Road, Bangladesh has long engaged with east and west. Named East Pakistan in 1955, it was separated by 1,400km of Indian Territory from Pakistan, it gained independence in 1971. The Grameen Bank, which won Nobel Peace Prize for its microfinance innovation, was founded in Bangladesh.