The battle of Marathon in 490 BC fought in northeastern Attica.
 The district was on a plain in the northeastern part of Attica and contained four cities: Marathon ( ), Probalinthus ( ), Tricorythus ( ), and Oenoe ( ). 
Marathon (Demotic Greek: , "Marathnas"; Attic/Katharevousa:  , "Marathn") is a town in Greece, the site of the battle of Marathon in 490 BC, in which the heavily outnumbered Athenian army defeated the Persians. 
