Qatar officially declared its independence in 1971, with Doha as its capital city. In 1973, the University of Qatar was opened by emiri decree, and in 1975 the Qatar National Museum opened in what was originally the ruler's palace. During the 1970s, all old neighborhoods in Doha were razed and the inhabitants moved to new suburban developments, such as Al Rayyan, Madinat Khalifa and Al Gharafa. The metropolitan area's population grew from 89,000 in the 1970s to over 434,000 in 1997. Additionally, land policies resulted in the total land area increasing to over 7,100 hectares (about 17,000 acres) by 1995, an increase from 130 hectares in the middle of the 20th century.