It was the Louisiana purchase.
Thirteenth fourteenth and fifteenth amendments are called the reconstruction amendments which aimed to achieve political equality in the American society.
Explanation:
The purpose of the thirteenth amendment was to abolish slavery and annihilate serving someone involuntarily. Fourteenth amendment advocates rights of an american citizen and fifteenth amendment proclaimed that all citizens are equal to vote in United States of America.
These amendments were called reconstruction amendments because it was significant in transforming united states which was partially free and partially slave states to a country on which liberty and equality was bestowed without any disparity on all citizens of US.
It paved the way for discovery, Colonization, And honestly it helped almost all of the world be discovered and identified along with the idea's of age old nations that the european's didn't even know about like rome and such to have a profound affect on there culture and way of life
There was so many casualties because enemies invaded malls,homes and others and the people didn't have enough time to evacuate.
