Facial Hair Friday: M=Mustache

Join @USNatArchives today on Twitter for our #ArchivesFacialHair Hashtag Party. Today's post comes from Vincent Bartholomew from the National Archives History Office. Albert Einstein, 1936. (National Archives Identifier 596270) German-born and Swiss-educated theoretical physicist Albert Einstein is possibly best known for his mass—energy equivalence formula, E = MC2  (Energy = Mass x Speed of Light2), … Continue reading Facial Hair Friday: M=Mustache