#OnThisDay in 1940 #UncleSam debuted in #NationalComics #1 #legendHasIt an #AmericanRevolutionaryWar soldier KIA merged w #TheSpiritOfAmerica & #returnsToTakeCorporealForm at times of #NationalJeopardy leads contingent of #QualityComics heroes to #DCComics #EarthX in 1973 amid #Watergate #WillEisner