1) Ancient Greek sportsperson 
Callippides (Καλλιππίδης) or Callippos (Κάλλιππος) was apparently an ancient Greek runner, who gave his name to a proverb for those making great efforts but no progress. ==Instances== Cicero in a letter to Atticus complains, in 45 B.C., that Varro had promised to dedicate a work to him but `Two years have gone by while that Ca....