You may have never heard of him, but no historian has had a greater influence on modern America than Howard Zinn. His most popular work, A Peoples History of the United States, was brought into the cultural mainstream with Matt Damon's Oscar winning 1997 film Good Will Hunting. The book is a precursor to the 1619 Project - tracing the roots of America's sins and inequities to Christopher Columbus' 1492 voyage and the rise of capitalism.

So for Columbus Day Weekend we invited Dr. Mary Grabar, a historian and author of "Debunking Howard Zinn: Exposing the Fake History That Turned A Generation Against America", to join us for an objective look at Zinn's perspective on American history, his motivations for attacking the USA and capitalism, and the ramifications of his influence on generations of academia.

Dr. Mary Grabar is an author and a resident fellow at the The Alexander Hamilton Institute for the Study of Western Civilization. She is also the founder of the Dissident Prof Education Project. Follow her on Twitter at @MaryGrabar.