The U.S. bought the Louisiana Territory from France for 15 million dollars.
The people of Mexico were unhappy because they were treated unfairly. The Peninsulares at the top of society had all the money and power. The native people were treated the worst and didn't have money or power.
Battle of Medina
Father Miguel Hidalgo issued his "Grito de Delores" that encouraged the people to fight for independence from Spain.
Constitution of 1824
The Filibusters were military adventurers who fought illegal wars. They wanted to take land from Spain.
The Battle of Medina was the bloodiest battle in Texas History. The Spanish army defeated the Republican Army of the North.
The Constitution of 1824 provided a way for the people of Mexico to be treated fairly and spread the power of the government to many.