Depends on what time period your referring to but i believe this is The Mandate Of Heaven.
Answer:
Articles of Confederation
United States Constitution
Bill of Rights
Declaration of Indepence
1) Santa Anna had signed a treaty to grant Texas independence and Mexico refused to accept this treaty.
2) Texas was bankrupt.
3) Comanches and Indian groups threatened attack smaller Texan communities.
Pontiac's Rebellion began in 1763. Many Native American tribes had been very friendly with the French. The Native Americans were concerned when Great Britain got control over the land that France had previously controlled. When France lost the French and Indian War, they gave this land to Great Britain.
The north had so many manufacturing plants that's what the north depended on the south depended on cotton and slavery