The research that is the basis of this work has taken me on a uniquely inspiring journey from Ancient Rome to today's international debate concerning the legal regulation of cohabitation.
For their generous companionship, good advice, and readings of the manuscript on this journey, and for the spontaneous response and support I have received in the international legal academic family, I thank Professors Anders Agell and Stig Strömholm, Uppsala University; Professor J. Thomas Oldham, University of Houston; Professor David Westfall, Harvard Law School; Professor Martha Baily, Queen's University, Kingston; Professor Marsha Garrison, Brooklyn Law School; Professor Thomas R. Andrews, University of Washington; Professor Eric M. Clive, University of Edinburgh; Professor Bill Atkin, Victoria University of Wellington; Professor Kathleen Kiernan, London School of Economics and Political Science; and Dr. Jens M. Scherpe, Max-Planck Institute for Foreign and International Private Law.
For their excellent and courteous library assistance, I give thanks to Professor James B. Leonard, Director of the Law Library, University of Alabama, previously Ohio Northern University; Librarian Birgitta Köhler, Uppsala University; as well as the entire staff at the Law Library of Congress, Washington, D.C., where I have had the pleasure of conducting some of my research. Particular thanks must also be given to my translator, Laura Carlson, an American and Swedish Doctor of Law.
Financial support for this project has been gratefully received from the Faculty of Law, Uppsala University; Emilj Heijnes Stiftelse för Rättsve tenskaplig Forskning; G. Huselius Stiftelse and Jura Law Institute.