The University of Macau, Portuguese: Universidade de Macau;traditional Chinese: 澳門大學; pinyin: Àomén Dàxué; Cantonese Yale: O Mun Dai Hok, established in 1981, was the first and currently the largest (in terms of student population) university in Macau, a former Portuguese colony. It was formerly known as University of East Asia (Portuguese: Universidade de Ásia de Leste; traditional Chinese: 東亞大學; pinyin: Dōngyà Dàxué; Cantonese Yale: Dung Ah Dai Hok), and was renamed the University of Macau in 1991. The university offers about 100 Doctoral, Master's and Bachelor's degree programs. English is the main medium of instruction, although certain programs are taught in Chinese, Portuguese and Japanese. The current Chancellor of UM is chief executive Fernando Chui and the Rector is Wei Zhao. The university's campus on Taipa Island has expanded dramatically in recent years as a result of the region's rapid economic development and Macau's 1999 return to China. This expansion has allowed Macau to develop local talent as it evolves beyond its colonial past. Student enrollment rose from several hundred students in the 1980s to over five thousand today.