I want to know the answer to the following question:
How long ago were Paleo-Indians known to be in the Tucson area?
All the background I'm provided with is that "The groups designated as the Hohokam lived in the area from AD 600 to 1450 and are known for their vast irrigation canal systems and their red-on-brown pottery.[citation needed]". Is that enough to answer the question?
Answer: no