Macao used to be a colony of Portugal. Although Portuguese is an official language alongside Chinese (as a result of it being a Portuguese colony in the past), very few Macanese actually speak Portuguese; only about 0.7% speak it at home. As a matter of fact, English is more commonly spoken, despite it not being an official language (about 2.3% speak it at home). Cantonese is the main dialect of Chinese spoken in Macau. However, Mandarin has also become more common since Portugal returned it to China in 1999.