American immigrant didn't want to convert in catholic, and they didn't want to free their slaves, in addition, the immigration was another important social factor in this conflict because Mexico wants to stop the English-speaking settlers.
In 1836 Mexico's President Antonio López want to impose abolishing slavery, but Santa Anna is took prisoners and sign a treaty recognizing the independence of Texas.
In 1845 Texas become a slave state of the United States.
Johannes Gutenberg is usually cited as the inventor of the printing press. Indeed, the German goldsmith's 15th-century contribution to the technology was revolutionary — enabling the mass production of books and the rapid dissemination of knowledge throughout Europe.
