For 10 points, what Seleucid ambassador wrote the book Indica, an account of Mauryan India?
A portion of an otherwise unrelated work by this man was used by Clement of Alexandria to argue that the "Jewish philosophy" preceded the Greeks. In a text by this author, he described people who subsisted on a crop called bosporum and who never experienced famine. He wrote about a land that eventually embraced democracy and banned slavery many years after being founded by "Herakles." Strabo claimed that this man's observations were complete nonsense, as were those of his successor, (*) Deimachus.  Many of his stories were later cribbed by Arrian for a similar text. He lived for a time with a ruler he referred to as Sandracottus following a treaty that gave this man's kingdom 500 war elephants. This man's most famous text is an eyewitness account of Pataliputra. For 10 points, what Seleucid ambassador wrote the book Indica, an account of Mauryan India?
A portion of an otherwise unrelated work by this man was used by Clement of Alexandria to argue that the "Jewish philosophy" preceded the Greeks.
Megasthenes [accept Arrian until it is read]