On July 1997, the former British colony of Hong Kong officially became part of the People's Republic of China. But while the Communist leaders in Beijing would like to remember this day as a glorious moment in the history of the whole nation, today at 3pm thousands of Hong Kongers rallied to demand more democracy , in an open act of defiance against the central government. A large crowd gathered at Victoria Park, in front of Hong Kong Central Library . The protesters are now marching towards Central , the city's business and financial district. Half a million people are expected to take part in the rally . The demonstration was organised by Occupy Central with Love and Peace , a movement launched by Hong Kong professor Benny Tai Yiu-ting . The movement demands direct elections of Hong Kong's Chief Executive in 2017. At the end of last month, the Occupy Central movement organised an unofficial referendum . As the polls closed on Sunday, 787,767 Hong Kongers had cas