<span>Prior to the Mexican American war president Polk sent John Slidell to Mexico to negotiate an agreement between that the Rio Grande River would be the southern border of Texas. ... The United States annexed the territory of California in 1848 following its victory in the Mexican-American War.</span>
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Answer:
Child Labor Industrialization puts the children into very dangerous machine in different manufacturing in 18th century. This all started from Industrial Revolution, with a mass production or new engines, coal mine, transforming our modern technology, and more.
Explanation:
I'm not sure which one you need, but lemme know what it is and I'll make a change.