He was the Republican presidential nominee in 1940 and lost to F.D.Roosevelt. He was a rare Republican interventionist, favouring more involvement in World War Two (pre-Pearl Harbour) to support Britain and the allies.
He is significant this year because the occasion of his nomination was the last time either of the two main US political parties put forward a presidential nominee who had no experience as an elected office holder or as a “war hero”.
Now we have Donald Trump fulfilling both of those qualifications.
….Unless he’s suddenly going to tell us he won the Korean War single-handed….