Create a timeline of the main political events policies agreements etc that have marked Macaus gradual return to China starting with the formation of the Peoples Republic of China PRC in 1949 until th

1949 - The People's Republic of China (PRC) is formed, and Macau becomes a colony of Portugal.

1966 - The Cultural Revolution in China leads to increased tension between China and Portugal, and Macau experiences political unrest.

1974 - The Carnation Revolution in Portugal leads to a shift in the country's political ideology, and Portugal begins to consider the possibility of returning Macau to China.

1979 - Portugal and China begin negotiations regarding the return of Macau. The Joint Declaration on the Question of Macau is signed, outlining the terms of Macau's return to China.

1987 - The Basic Law of Macau is drafted, outlining the political structure and autonomy of Macau under Chinese rule.

1990 - The first Legislative Assembly of Macau is elected, marking a significant step towards self-governance.

1997 - Hong Kong, another former British colony, is returned to China under the "one country, two systems" policy. This policy is also adopted for Macau's return.

1999 - On December 20, Macau is officially returned to China, and the Special Administrative Region of Macau is established. Edmund Ho Hau-wah is sworn in as the first Chief Executive of Macau