There was an amazing amount of information in the series that was new to me. Some of the 'private' family matters, of course, which is interesting as background... but also details of what FDR & Eleanor did as public policy and in the war effort.

I shudder to think what would have happened if FDR had died in, say, early 1944, without being re-elected with Truman. Dewey might well have served 2 terms..... and..... hmmmm