Im not 100% sure but that should be the year that Texas joined the nation or the united states.
The correct answer in my opinion would be that D is the most important factor here. But this question is quite tricky.
We can surely say for example that literature, organized schools and a hierarchy of priests are not something that constitute a civilization. Organized schools appeared to late, not every civilization had literature and having only a hierachy of priests is not enough to say you have a civilizaton.
Labor has been divided in pre-civilization hunter-gatherer societies as well.
For that reason I'd say the correct answer is D - more food than is needed for survival. Having this, the people in a certain group can focus on other things.
Answer:
During the 1850s, the women's rights movement gathered steam, but lost momentum when the Civil War began. ... In 1869, a new group called the National Woman Suffrage Association was founded by Elizabeth Cady Stanton and Susan B. Anthony. They began to fight for a universal-suffrage amendment to the U.S. Constitution.
