Im not 100% sure but that should be the year that Texas joined the nation or the united states.
When Queen Elizabeth says this, she is asserting that she has the same qualities and abilities to lead a country as a king does. Whether this is courage, leadership skills, a love for one's country, or wisdom, Queen Elizabeth is basically stating that queens are no less qualified to rule countries than kings. Hope this helps.
Mexican immigrants wanted to escape poverty, war, turmoil, and even persecution for certain groups