Cession

a giving of rights to another.  Someone giving land to another person, usually unwillingly.


Dispute

To fight, argue, or struggle against.


Established

To accept, or make firm.  Agreed upon.


Manifest Destiny

The belief that the US was meant to go from coast to coast.  They were meant to own all the land


Tejanos

Texans of Mexican descent.  People who lived in Texas, but had Mexican ancestors.  Today we would call them Hispanics.


Treaty

An agreement, made by two countries.  A bargain, or a deal.