| Month |
Political Events |
Military Events |
| January |
- Stephen F. Austin published his Exposition to the Public Regarding the Affairs of Texas. In this document he explained that Texas wanted to be a separate state, not an independent nation.
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| May |
- 25 – Fearing that Santa Anna would march against Coahuila after subduing the rebels in Zacateca, federalist governor Agustín Viesca disbanded the state legislature in Monclova. Viezca traveled towards Texas, intending to set up a new government in the more remote San Antonio. He was arrested en route.
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- Centralist elements of the Mexican army invaded the capital, Saltillo, and dissolved the state government.
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| June |
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- 20 – In the second of the Anahuac Disturbances, William Barret Travis led a militia to free colonists who had been arrested in a customs dispute. The Mexican troops surrendered and were expelled from the province.
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| July |
- Austin was freed from prison as part of a general amnesty.
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- The political chief of the Nacogdoches region told the militias to take arms against the Mexican troops.
- "Texas Committees" in the United States organized to send money and volunteers to Texas.
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| August |
- Austin arrives in Texas and resumes his position as civil head of Anglo-American Texas.
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| September |
- 8 – Austin reverses himself and calls for war with Mexico to secure the freedom of Texas.
- 28 – Juan Seguín, Salvador Flores, Manuel Flores and a group of Béxar locals hold a meeting near Floresville, Texas and declare their support and readiness to take up arms in favor of a revolution.
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- 1 – Correo-San Felipe affair. Texas armed schooner San Felipe exchanges fire with and captures Mexican Navy armed schooner Correo de Majica with help of small steamer Laura. Arguably the first shots in the conflict.
- 20 – General Martin Perfecto de Cós, lands at Copano with an advance force of 300 troops and marches toward Goliad.
- 28 – Albert Martin is selected as Captain of the Gonzales "Old 18" defenders.
- 29 – Mexican Lieutenant Francisco de Castañeda and 100 dragoons arrive near Gonzales to force the settlers to return the cannon they had been given in 1831.
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| October |
- 3 – Santa Anna abolishes all state legislatures.
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- 2 –
- The Battle of Gonzales officially begins the Texas Revolution. The Texian settlers retained their cannon; Castañeda and his men retreated.
- Cós occupies Goliad and awaits the arrival of 450 reinforcements from the Morelos battalion.
- Cós sends Capt. Manuel Sabriego and twenty-five men to Guadalupe Victoria, Texas to seize their cannon and arrest José María Jesús Carbajal. Alcalde Plácido Benavides leads the militia of Victoria; The settlers retained their cannon.
- 5 – Cós departs for San Antonio, leaving a residual force of about 30 men in Goliad.
- 10 – The Battle of Goliad, afterwards Texians occupy the presidio at Goliad.
- 11 – Austin is elected commander of the Texian volunteers. The army begins marching towards San Antonio.
- 14 – Philip Dimmitt takes command of the militia that remain to guard Presidio La Bahia.
- 27 – Austin sends James Bowie, Fannin and Seguín with 90 men to scout for a base of operations from which to launch a siege. Despite orders to return that day, Bowie and his men camp overnight on the grounds of Mission Nuestra Señora de la Purísima Concepción de Acuña.
- 28 – 400 Mexican troops attack Bowie and his men. The Battle of Concepcion ended with a Mexican retreat.
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| November |
- 3 – The Consultation meets in San Felipe de Austin to decide the overall goals of the revolution that was underway. The group does not declare independence, and affirms their intention of restoring the Constitution of 1824.
- 7 – The Consultation declares the right to form a new independent state and government as long as the 1824 Constitution of Mexico was not valid in Mexico.
- Henry Smith is named Governor.
- The new provisional government elects Austin, William H. Wharton and Branch T. Archer, to serve as commissioners to the United States.
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- 1 – The Texans begin the Siege of Bexar.
- 3 – Texans capture Fort Lipantitlan.
- The Consultation names Sam Houston commander-in-chief of a regular Texas Army, with no authority over Austin's volunteers.
- 15 – José Antonio Mexía attacks Tampico. When expected help does not arrive from federalists in Matamoros, he retreats to Texas and promotes an attack on Matamoros .
- 26 – Bowie leads Texians in the Grass Fight.
- 28 – Santa Anna leaves Mexico City with a 6,000-strong Mexican Army, marching northward to take back Texas from the rebels.
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| December |
- 30 – Santa Anna receives declaration from Mexican Congress that all foreigners taken in arms against the government should be treated as pirates and shot.
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- 1 – Edward Burleson commissioned as commander of the volunteer army by the provisional government.
- 5 – Under Ben Milam and Frank Johnson, Texans launch an assault on San Antonio.
- 7 – Fannin commissioned as a colonel in the regular army by Houston. Neill commissioned as a lieutenant colonel of artillery in the regular army by the provisional government.
- 8 – Colonel Domingo Ugartechea returns to San Antonio with over 500 reinforcements to aid General Cós.
- 10 – General Cós surrenders over 1,000 Mexican troops and the Alamo to Texan forces at San Antonio. Cós and his men are paroled to Mexico under a promise to not fight against the Texans again.
- 12 – Houston issues a proclamation to recruit a Regular Texas Army.
- 15 – Edward Burleson resigns command. Most volunteers return home for Christmas. Frank W. Johnson assumes command of remaining militia.
- 17 – Sam Houston is ordered by the Texas Governor Henry Smith to attack Matamoros. James Bowie is ordered by the commander-in-chief of the regular Texas Army Sam Houston to attack Matamoros.
- 29 – James Bowie's order to attack Matamoros is confirmed by the Texas General Council.
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