Muhammad Ali Was a Force Like I've Never Seen, Says Ken Burns

The video discusses a four-part series on Muhammad Ali, highlighting his significant role in American history and his intersection with major societal issues. The production of the series began in 2013 and involved extensive research and interviews with family and scholars. The series aims to present a comprehensive view of Ali's life, including his complexities and controversies, without seeking approval from his family.

What kind of research was necessary to create the series on Muhammad Ali?

Who were some of the individuals interviewed for the series?