On April 20 1972, 100 newly elected parliamentarians gathered in Port Moresby for the opening of the Third House of Assembly, Papua New Guinea’s legislative body.

Many of these members were young and some were new to politics: Chief Minister (later Grand Chief) Michael Somare was 37, Minister of Finance Julius Chan was 33, and Josephine Abaijah, the only woman, was 32.

Within three years, these trailblazers would steer the country from a colonial territory of Australia to a newly independent nation, declared on September 16 1975, 50 years ago this week.

As they moved from colony to self-government to independence, the members of the Third House of Assembly held sophisticated debates on decolonisation.

Leaders did not simply inherit Australian institutions. They reimagined them, arguing about land, law, unity, culture and what the concept of “development” should mean in a Melanesian society.

These speeches and debates are captured in Debating the Nation: Speeches from the House of Assembly, 1972–1975, the recently published book we co-edited along with Keimelo Gima, a historian at the University of Papua New Guinea.

Papua New Guinea prepared for independence with a radical approach to the drafting of its constitution. The task fell to the Constitutional Planning Committee (CPC) — led in practice by Bougainville priest-politician John Momis.

Over three years, the committee held meetings across the country, gathering the “raw materials” of people’s views on citizenship, governance........

© The Conversation