Many of them were angry with the British rule... they were against having somebody control everything without their say in the Government.
In the postwar years of the Cold War, the technology made a real boom in the agricultural sector. The new machinery, the creation of better chemicals for treating the soil and plants, as well as for their protection from pest, resulted in much increased agricultural production.
The arable land that a single family was able to work on with the new technological advancements increased significantly. That led to significantly increased production, and also a significant increase of profit for the people engaged into agriculture. The higher production led to more stable food sources, thus in numerous countries the malnutrition was wiped away or minimized.
I’m going to go with the 3rd. Everyone knows(should know)the 1st, 2nd , 4th and 5th but it’s rare for people to know the 3rd without at least a reminder. It’s the one about not quartering soldiers in peace time. This is the least argued amendment. I don’t think it’s even been incorporated through the 14th since it doesn’t ever come up. All that being said, if it wasn’t there I bet we would all get new roommates.