Hello
Slavery was against Mexican law ,but American bought slaves to texas . many Americans settlers and Mexicans who lived in texas wanted to break away from Mexico They did not liked the law made my Mexico's president .They wanted to fight to freedom.
This led to tension between American and Mexicans in Texas.
Thanks
I think A
i am like 80 % sure
League of Nations.
It fell apart because it failed to stop WWII (partially because the US didn't join it), and after WWII, the United Nations was created.
B - the Church rejected them as heresy.
The works of Greek thinkers were not in line with the dogma of the Church. For that reason they rejected what the Greek thinkers of their time did and called every work which they did heresy not to be read.