Carlos Manuel de Morais Seixas Pires Sardinha was born in Portalegre (Portugal) in 1977. Graduate in Law (2000), Master in Law (2003) and Ph.D. in Law (2010) (Legal Historical Sciences) at Católica|Lisbon School of Law where he works as Assistant Professor of Legal History since 2011. Visiting Researcher, Institute for History of Law and Comparative Legal History, University of Freiburg (Germany) (2005-2008, 2009, 2010), Stadtsbibliothek, Berlin (2012, 2013), Hammarskjöld Bibliotek (Uppsala, Sweden) (2014), Koninklijke Bibliotheek (The Hague, Netherlands) (2014, 2017), Library of the University of Leiden (2014), Library of the University of Amsterdam (2015), Instituut voor oorlogs, holocaust genocidestudies (2015), Amsterdam, Nasjonalbiblioteket (2016), Oslo, William Cullen Library, University of the Witwatersrand Johannesburg. Member of the 'Católica Research Centre for the Future of Law' (since 2013). Presently I'm writing the book "International Economic Cooperation: a Legal Historical Theory".