The Periplus of Pseudo-Scylax  is named for an explorer sent by this king to explore the Indus River.
A passage often used to introduce cultural relativism describes how this king called in people of the Callatian tribe to tell some Greeks about their practice of eating their dead parents.  The Periplus of Pseudo-Scylax  is named for an explorer sent by this king to explore the Indus River. After his predecessor died of gangrene, this king and six other nobles assassinated a magician pretending to be Bardiya named Gaumata, an event described in his (*)  cliff-face Behistun Inscription. After suppressing the Ionian Revolt, this successor of Cambyses II launched a campaign which burnt Eretria, but was stopped by Miltiades at a battle followed by Pheidippides's run to Athens. For 10 points, name this Persian king whose troops lost at Marathon, the predecessor of Xerxes I.
A passage often used to introduce cultural relativism describes how this king called in people of the Callatian tribe to tell some Greeks about their practice of eating their dead parents.  
Darius  I [or  Darius  the Great] 