I would look for historical information on shallow deposits of gold within Greece, or if I could not find any start my own expedition to discover one. Then I w

I would look for historical information on shallow deposits of gold within Greece, or if I could not find any start my own expedition to discover one. Then I would go back in time and announce that I knew where the deposit was to anyone who would listen and lead them there to dig it up. Then I'd break the news to them about time travel.