margin. Following a series of minor skirmishes between Mexican authorities and the settlers, the Mexican government, fearing open rebellion of their Anglo subjects, began to step up military presence in Texas throughout 1834 and early 1835. Mexican President Antonio López de Santa Anna revoked the 1824 Constitution of Mexico and began to consolidate power in the central government under his own leadership. In 1835, the central government split Texas and Coahuila into two separate departments. The Texian leadership under Austin began to organize its own military, and hostilities broke out on October 2, 1835, at the Battle of Gonzales, the first engagement of the Texas Revolution. In November 1835, a provisional government known as the Consultation was established to oppose the Santa Anna regime (but stopped short of declaring independence from Mexico). On March 1, 1836, the Convention of 1836 came to order, and the next day declared independence from Mexico, establishing the Republic of Texas. Independent republic Politics Sam Houston was elected as the new President of the Republic of Texas on September 5, 1836. The second Congress of the Republic of Texas convened a month later, in October 1836, at Columbia (now West Columbia). Stephen F. Austin, known as the Father of Texas, died December 27, 1836, after serving two months as Secretary of State for the new Republic. In 1836, five sites served as temporary capitals of Texas (Washington-on-the-Brazos, Harrisburg, Galveston, Velasco and Columbia), before President Sam Houston moved the capital to Houston in 1837. The next president, Mirabeau B. Lamar, moved the capital to the new town of Austin in 1839. The first flag of the republic was the "Burnet Flag" (a single gold star on an azure field), followed in 1839 by official adoption of the Lone Star Flag. Internal politics of the Republic centered on two factions. The nationalist faction, led by Lamar, advocated the continued independence of Texas, the expulsion of the Native Americans (Indians), and the expansion of Texas to the Pacific Ocean. Their opponents, led by Houston, advocated the annexation of Texas to the United States and peaceful coexistence with the Indians, when possible. The Texas Congress even passed a resolution over Houston's veto claiming the Californias for Texas. The 1844 presidential election split the electorate dramatically, with the newer western regions of the Republic preferring the nationalist candidate Edward Burleson, while the cotton country, particularly east of the Trinity River,