Edward Koiki Mabo
The Mabo decision and the High Court
At the final hearing in the case of Mabo and Others v Queensland (No. 2) (1992), the full bench of the High Court of Australia recognised the prior claim of Indigenous Australians to the land that was claimed for England in the 18th century.
Edward Koiki Mabo’s role
One of the key figures in the Mabo case was Edward Koiki Mabo (1936–1992) of Mer (Murray) Island in the Torres Strait. Mabo had inherited land on Mer from his uncle. He later realised that the land could not belong to him because, after colonisation, it had been made ‘Crown land’ and therefore belonged to the state. Recognising this as profoundly unjust, Mabo and others from the Torres Strait sought to claim their right to their ancestral lands by taking their case to court.
A legacy preserved in the Library
The Papers of Edward Koiki Mabo were purchased from his widow, Bonita Mabo. The papers document many aspects of Mabo’s life, including:
- his involvement in family businesses and employment-creation ventures
- the establishment of the Black Community School in Townsville (the first institution of its kind in Australia)
- his interest and involvement in Indigenous arts, health, housing and education
- his support for Torres Strait Islander independence and self-determination.
A place in world history
In 2001, the Mabo Case Manuscripts were inscribed on the UNESCO Memory of the World Register, along with James Cook’s Endeavour journal. The papers of the leading plaintiff in the land rights case Edward Koiki Mabo, and those of his lawyer, Bryan Keon Cohen, were noted as documenting ‘an extremely rare instance in world history of pre-existing tribal law being formally recognised as superior to fundamental law of the “invading” culture, regardless of the economic and political implications’.

Bryan Keon-Cohen, Greg McIntyre, Queensland Supreme Court and Australia High Court, Papers of Bryan Keon-Cohen [manuscript] : the Mabo case, 1981-2000, 1981, nla.gov.au/nla.obj-224077217
Bryan Keon-Cohen, Greg McIntyre, Queensland Supreme Court and Australia High Court, Papers of Bryan Keon-Cohen [manuscript] : the Mabo case, 1981-2000, 1981, nla.gov.au/nla.obj-224077217
Learning activities
Activity 1: Mapping ownership
Show students the map of Mer created by Mabo. Ask:
- How do we know who owns land in our neighbourhood?
Encourage students to generate questions that connect Mabo’s map to how ownership boundaries are defined today.
Activity 2: Group research on Mabo and terra nullius
Explain that students will investigate a significant event in Australian history—the Mabo decision.
- Divide the class into groups of four.
- Each group member is responsible for researching one of the following:
- Define the concept of terra nullius.
- Use an online map to locate Possession Island and Mer (Murray) Island in the Torres Strait.
- Find out who Edward Koiki Mabo was.
- Identify when the High Court handed down its decision in the Mabo case.
- Once complete, students share their research with their group.
Activity 3: Human rights
As a class, compile a list of fundamental human rights.
- Compare the class list with the United Nations Declaration of Human Rights.
- Identify similarities and differences between the two lists.
Activity 4: Media responses to the Mabo decision
Ask students to investigate how the media responded to the Mabo judgement.
As a class, create a table categorising media outlets as supportive, neutral or opposed to the findings.
Activity 5: Drawing a map
Ask students to draft a map of either their school or home.
- Have students complete a final version on A3 paper, including a scale and a key.