Leif Ericson
Leif Ericson (Old Norse: Leifr Eiríksson) was a historical figure from Earth history. 

 historian Marla McGivers adored Ericson and made a painting of him. When Khan visited her quarters in 2267, he recognized Ericson, and said McGivers' paintings were of "bold men from the past." 

Later McGivers surprised Khan by saying that she knew his identity: the genetically-engineered superman was "Leif Eriksson and Richard the Lionheart and Napoléon."  ()

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Ericson, Leif