18-0016 – Constitute
Author: Comparative Constitutions Project, Google Ideas Time period: 1789 – Access database here.
Author: Comparative Constitutions Project, Google Ideas Time period: 1789 – Access database here.
Authors: Elkins Zachary, Tom Ginsburg and James Melton Time period: 1789 – Access data here.
Author: Drew A. Linzer and Jeffrey K. Staton Time period: 1948-2012 Access Dataverse link here.
Authors: Brian Flanagan and Sinead Ahern Time period: 2005-2006 Access ICPSR here.