An amendment to the Constitution must be approved by 3/4 of the states (A). That's why it's so difficult for an amendment to be ratified.
The Articles of Confederation and Perpetual Union was an agreement among the 13 original states of the United States of America that served as its first constitution. It was approved, after much debate, by the Second Continental Congress on November 15, 1777, and sent to the states for ratification.
Answer:1 year and 23 days the person who proposed the 15th amendment is President Lyndon B. Johnson
Explanation: Hope this helped