Did you know that we’re celebrating a second Lincoln anniversary this year? Crisis of the House Divided, Harry Jaffa’s classic study of the Lincoln-Douglas debates, appeared an even half century ago. (The University of Chicago Press has just introduced a fiftieth anniversary edition.)

How important is the book? “Crisis of the House Divided,” writes journalist Andrew Ferguson, himself the author of a volume on Lincoln, “is a book that will never die — a genuine landmark in American thought. It’s the greatest Lincoln book ever. No foolin’.”

This week on Uncommon Knowledge, the author of one of the most influential works of American history and political philosophy ever published, Harry Jaffa.

Today? Jaffa on how it started.

Click here.