sentences:  These Anglo-American settlers, known as Texians, were frequently at odds with the Mexican government, since they sought autonomy from the central Mexican government and the expansion of black slavery into Mexico, which had abolished the institution in 1829 under Mexican president Vicente Guerrero.Their disagreements led to the Texas Revolution, one of a series of independence movements that came to the fore following the 1835 amendments to the Constitution of Mexico, which substantially altered the governance of the country.Prior to the Texas Revolution the general public of the United States was indifferent to Texas, but afterward, public opinion was increasingly sympathetic to the Texans.