Best answer would be Alexander the Great.
Wasn't a lot of annual purchases. This lead to a lot of Tabacco farmers ending up with really bad debt that mounted over the years they owned the farm.
The Rosetta Stone was found by accident in 1799 when the soldiers in Napoleons army were digging the foundations to a fort close to the town Rashid in the Nile Delta.
The Rosetta Stone is an important artifact because it is the key to understanding the Egyptian heiroglyphs.