What supports this passage is that Texas and California were under control by Mexico until the land was fought for. That is why America couldn't annex it.
In the antebellum south, slaves did free labor. Slaves were considered property, and they were property because they were black. Their status as property was enforced by violence -- actual or threatened. Besides planting and harvesting, there were numerous other types of labor required on plantations and farms. Enslaved people had to clear new land, dig ditches, cut and haul wood, slaughter livestock, and make repairs to buildings and tools. In many instances, they worked as mechanics, blacksmiths, drivers, carpenters, and in other skilled trades. Black women carried the additional burden of caring for their families by cooking and taking care of the children, as well as spinning, weaving, and sewing.
Some slaves worked as domestics, providing services for the master's or overseer's families. These people were designated as "house servants," and though their work appeared to be easier than that of the "field slaves," in some ways it was not. They were constantly under the scrutiny of their masters and mistresses, and could be called on for service at any time. They had far less privacy than those who worked the fields.
Mexicans were angry about the close ties between U.S. business and the Mexican government. (APEX)
Mummified human body that was found by a German tourist, Helmut Simon, on the Similaun Glacier in the Tirolean Ötztal Alps, on the Italian-Austrian border, on September 19, 1991.
There was a lack of support for rebellions to gain independence.
This wasn’t much but I hope it helps some
