I am happy to see that the United Nations is going to consider the international law of colonialism – the Doctrine of Discovery – through its Permanent Forum on Indigenous Issues over the coming year. Read more.
I have been researching and writing on this topic since 2002. In my most recent work, I and my coauthors examined the use of Discovery by Spain in Chile, and the use of Discovery by Portugal in Brazil. You can download these articles for free by clicking on the links:
Brazil, Indigenous Peoples, and the International Law of Discovery, 37 Brooklyn Journal of International Law __ (2011):
The International Law of Discovery, Indigenous Peoples, and Chile, 89 Nebraska Law Review __ (2011) (this article will also be published in Spanish by Valpariso University).
You might also be interested in my 2006 book in which I examined the Doctrine of Discovery in the United States
and the 2010 book I co-authored with Indigenous scholars from Australia, Canada, and New Zealand about the use of Discovery in our four countries against Indigenous peoples.
Several links to UN announcements and papers etc. can be found here.