The Proclamation of 1763 allowed the American colonies to expand their trade with the nations of Europe.
Explanation:
This is true due to the fact that,Americans where not trading with the European Nations intially. It was as a result of this Proclamation that, it was made possible leading to the establishing of the trade relations between both continents.
Agriculture production improved in Europe because of better agricultural machines, fertilizers that are unharmful for earth and more farmers for agricultural production.
They retreaded because when winter rolled in the had warm weather colthing and they started to have less food when the Russians started to attack back.
