Prague's historic center was first included in the UNESCO list of World Heritage Sites in 1992.
A status referendum was held in the Cocos -LRB- Keeling -RRB- Islands on 6 April 1984 .. All registered voters participated in the vote , with 88 % voting for integration with Australia .. Australia. Australia. The referendum has been described as the `` smallest act of self-determination ever conducted '' .. self-determination. self-determination