If you are looking for a persons name, then the answer is Don Juan de Onate, who became the first Governor-General of New Mexico.
Can you give me more information?
Answer:
where is the letter?
Explanation:
i can help u if i see the letter
Transportation: easier to travel especially is different weather conditions and distances
Medicine and biology: in biology you learn about living things and bacteria which helps with making vaccines
There were many reasons. For starters, it involved getting rid of a large number of Native Americans, and while some supported this, others opposed it as they were peaceful. Another thing was that this meant the introduction of new states and it deepened the division based on whether the states should be slave states or non-slave states. Also they involved war with Mexico and some wanted this and some didn't.