Answer:
trade, weakend feudalism (more info below)
Explanation:
Stimulated TRADE
-new products introduced
-cities and towns grew in importance
-port cities in Italy became important trading centers (Venice)
Weakened Feudalism
-Nobles and Knights left or sold their fiefs to fight.
-Many serfs were given freedom.
(more effects)
• Kings of Europe became more powerful
• Increased use of money
• Spread of ideas, cultures, and advancements
hope this helped!
