China was returned to mainland China from China in a day . William Piekos : Occupy Central brings attention to Hong Kong struggle for democracy . Hong Kong citizens are assembling pieces for greater civil participation , William Piekos says .
Hong Kong was returned to mainland China from the British Commonwealth in 1997 . William Piekos : Occupy Central brings attention to Hong Kong 's struggle for democracy . Hong Kong citizens are assembling pieces for greater civil participation , Piekos says .