America's Written and Unwritten Constitution by Professor Akhil Amar on Coursera

Yale Professor Akhil Amar's Coursera course is designed to introduce you to one of the most important texts in human history—the United States Constitution. Why and how did this document come into existence in the 1780s? How and why has it been amended over the years? Who decides what it means? What are the ground rules for proper constitutional interpretation? How does the written Constitution interact with unwritten sources of constitutional authority, such as judicial decisions, presidential proclamations, landmark statutes, and widespread popular understandings?