The politics of Papua New Guinea takes place in a framework of a parliamentary representative democratic multi-party system, whereby the Prime Minister is the head of government. Papua New Guinea is an independent Commonwealth realm, with a governor-general, nominated by the National Parliament, acting as head of state. Executive power is exercised by the government. Legislative power is vested in both the government and parliament.
In Papua New Guinea the old beliefs have blended with Christian beliefs that had been introduced in the last century, which now form unique traditions for this part of the world.
In the Trobriand Islands Good Friday is regarded as the most important religious event in the year. About mid-morning a large number of people gather for a service in the settlement of Losuia. The youth from the surrounding villages present musical and other items on an Easter theme at this service. After the service is over people divide into small groups of family and friends for feasts in various homes.
Papua New Guinea is one of the most heterogeneous nations in the world.There are hundreds of ethnic groups indigenous to Papua New Guinea, the majority being from the group known as Papuans, whose ancestors arrived in the New Guinea region tens of thousands of years ago. The other indigenous peoples are Austronesians, their ancestors having arrived in the region less than four thousand years ago.