By 1850, most native americans were living in west texas because a. the buffalo had been slaughtered in east texas.  b. they preferred life near the rio grande.  c. the best land for farming was in this region.  d. they were forced to make room for settlers in east texas.

this is a pretty broad question and can be a pretty lengthy answer. since 1900, women have gained a lot more rights and have become active in the workforce. with women being in the workforce, men play a larger role in family life. many family tasks are shared between men and women, whereas, women used to be the sole family caretakers.

that should get you started at least.