Answer:
The first three of these postwar amendments accomplished the most radical and rapid social and political change in American history: the abolition of slavery (13th) and the granting of equal citizenship (14th) and voting rights (15th) to former slaves, all within a period of five years.
Explanation:
(copied from Google)
The United States declared war on Britain in 1812. It did so because Britain refused to stop seizing American ships that traded with France
