In 1979, Teotónio de Souza wrote his PhD thesis, Medieval Goa: A Socio-Economic History. It challenges the view that Portuguese rule in South Asia resulted in overall prosperity in Goa in the sixteenth and seventeenth centuries. His work sees "Golden Goa" as an expression popularised by art historians, with reference to baroquechurch architecture of the early centuries of the Portuguese rule. de Souza was the author and editor of many books and research papers, in both Portuguese and English. His partial memoirs are penned in a book, titled Goa To Me. His favourite area of research includes colonial and post-colonial themes, with particular reference to Portuguese in Asia. His authority in this field has at times been hijacked by people stealing his identity on the Internet. An article entitled "The Goa Inquisition", attributes its authorship to him, on a US-based website called Christianaggression, in 2005. It has since been cited by other communal sites. On his 60th birthday, de Souza was felicitated with a festschrift titled, Metahistory: History questioning History, containing personal tributes and 43 research papers contributed by historians and social scientists from the world over. The Lusophone University of Lisbon awarded him its Gold Medal of Merit on the same occasion, in recognition of his research, teaching, and critical appreciation and promotion of Lusophony. A firm believer in the power of web since the early 70s, and a defender of digitalization of historical sources, he founded, in partnership with the Goan free-lance journalist Frederick Noronha, the Goa-Research-Net in 1997, initially hosted in the Goanet server, and since 2005 on Yahoo! Groups. It also has branches on Facebook and on Mendeley, since May 2017. Since November 2008, Teotónio R. de Souza has continually been a columnist to the Goan daily Herald, in a section which seeks to link Goa and Portugal, in the past and present. Since 2012, he has written Op-ed columns for The Goan Everyday. He also writes for the Goan Observer and, since April 2018, runs a column for a Portuguese digital newspaper, Pátria . Many of his writings may be consulted online at Academia.edu, Scribd, ResearchGate, and the ReCil Lusófona - the online scientific repository of the Universidade Lusófona de Humanidades e Tecnologias, Lisboa. His book Goa: Outgrowing Postcolonialism - Historical Explorations, is a cultural-historical analysis of the evolution of Goa since its Liberation.
Academic and research activities
Teotónio de Souza retired from October 2014 as Cathedratic professor of the Universidade Lusófona, after representing, since 1996, the interests of History teaching and research on the Scientific and Pedagogic Councils, of the Faculty of Social and Human Sciences, Education and Administration of the Universidade Lusófona, as an ex-officio member. While acting as coordinator / Director of the MA and M.Phil courses in History, he guided M.Phil and Ph.D researchers in Political Science and Diplomatic Relations, and directed a line of research related to "Colonial and Post-Colonial Societies", and Memories of CPES of the Faculty of Social and Human Sciences, Universidade Lusófona, Lisboa. He was Director-Editor of the Journal of ACSEL and continued to help as Chief-Editor of the Journal FLUXOS E RISCOS - Revista de Estudos Sociais, that published the research findings of CPES. He was also a Member of the Editorial Board of the Journal of Immigrant & Refugee Studies.