Conquistadors.
It's a complicated combo of better weapons,, and diseases.
It alowed the tale to be spread not just orally but also to be written down and preserved better
Umm here you go... they had a problem with it because ...
Answer:
1) Mexico agreed to give up Texas and a vast region (Mexican Cession: CA, Nevada, Utah, Arizona, New Mexico)
2) Mexico gave up half of all its territory
3) US payed $15 million
Senators:
-thought the US had no right to take Mexican territory other than Texas
-Others wanted even more land
Explanation: