After his death, Guevara became an icon of socialist revolutionary movements and a cultural icon worldwide. An Alberto Korda photo of him has received wide distribution and modification, appearing on t-shirts, protest banners, and in many other formats. The Maryland Institute College of Art called this picture "the most famous photograph in the world and a symbol of the 20th century."
Ernesto (Che) Guevara de la Serna (1928-1967) - Nickname "Che" derived from Guevara's habit of punctuating his speech with the interjection che, a common Argentine expression for a friend

he was famous all the way earlier
you are late
man