After through the rapid development and population growth of the 1950s, Hong Kong's economic and social development has entered a golden stage of bumpy but rapid growth since the 1960s.Although Hong Kong developed in occasional adversity, such as the turmoil in 1966-67, and worries about the future of Hong Kong from Sino-British negotiation in 1984, there are also time of prosperity, for example, the economy has gradually increased because of industrial development, the public life have gradually improved, and the infrastructure has gradually completed.