Because Douglas didn't mind the creation of new slave-states, if the local people voted for it.
I don't understand the question, but enlightenment thinkers wanted to apply the rules of nature to give people's basic rights (life, liberty and the pursuit of happiness).
Answer:
Raising money was difficult for a small, new country.
Texas needed help defending its borders against continued attacks by Mexico.
Explanation:
Some of the reasons that Texas wanted to become part of the US was for financial help and stability because raising money for them at the time was difficult.
Another reason was for security: They needed a stronger force to protect them against the attacks of the Mexicans which came almost incessantly.
They were made out of sun-dried bricks hay sand and dried muds in the ancient period of mesopotamia.