When was the first convention held for ffa

Could anything have been done through compromise to stop it, or did it have to happen?

What were four reasons for the decline of spain as a world power

How did inca develop their road system? a) they used mortar to hold the stones together.b) they built suspension bridges over rivers. c) they mixed copper and stone together to make the blocks.d) they laid roads in the cities, not in the less densely populated deserts.