501.)  "Old Rough and Ready."
502.)  He said that disagreements over whether or not to allow slavery in the new states would lead to a civil war.
503.)  General Santa Anna.
504.)  Mexico City.
505.)  All of California, Nevada, and Utah and parts of Colorado, New Mexico, and Arizona.
506.)  Reformers.
507.)  The temperance movement.
508.)  Slavery.
509.)  Abolitionists - because they wanted to abolish (get rid of) slavery.
510.)  Dorothea Dix.
511.)  They were locked up like criminals.
512.)  Horace Mann.
513.)  Universal education.
514.)  Feminists.
515.)   Margaret Fuller.
516.)  Ending slavery (she was an abolitionist). She later fought for women's rights.
517.)   Ending slavery (she was an abolitionist). She later fought for women's rights.
518.)  Seneca Falls.
519.)   Frederick Douglass and Sojourner Truth.
520.)  Women's rights.
521.)  That women be given the right to vote.
522.)  The Civil War.