The Old World is a reference to those parts of Earth known to Europeans before the voyages of Christopher Columbus; it includes Europe, Asia and Africa.
Or, perhaps, it would be better to discount the notion of an agricultural "revolution" in its entirety. Agriculture it seems begins whenever the climatic and social conditions are right for it to do so. Previously evidence has been found of agriculture in the Nile Valley during the 11th millennium BC.
Archaeologists find possible evidence of earliest human agriculture — 11,000 years earlier than thought
Something is wrong here. War, disease, death, destruction, hunger, filth, poverty, torture, crime, corruption, and the Ice Capades. Something is definitely wrong. This is not good work. If this is the best God can do, I am not impressed.