The thirteenth amendment was ratified on December 6,1865. This amendment ended slavery. This amendment does not allow slavery in the USA. There wasn't a certain person that proposed it. It was a group decision
This amendment was ratified December 15,1791 as part of the bill of rights. James Madison proposed the bill of rights.This allows us the right to bear arms.
The 26th amendment was ratified in March,1971.This amendment lowered the age of voting to 18. It was overall popular and got ratified.