Day One – Tuesday February 23, 1836

The garrison's sentries spot the advance of Santa Anna's Cavalry units. After scouts confirm the Mexican army's presence, Colonel William B. Travis orders a withdrawal into the Alamo compound.

In a parley with Mexican Colonel Juan Almonte the Texians are ordered to surrender or be put to the sword.

Travis answers the Mexican's terms with a volley from the 18-pounder.

Day Two – Wednesday February 24, 1836

The second day of the siege began early with the Texians facing a newly established battery erected by the Mexicans during the night. The battery consisted of two eight-pounders and a howitzer and was located approximately 400 yards to the west of the fort. It was known as the River Battery.

The defenders were busy that night as well. They had captured at least one Mexican soldier and six pack mules during a nighttime patrol. According to Enrique Esparza, the defenders used the captured soldier to decipher bugle calls for the Texians throughout the siege.

Sometime around eleven that morning, Santa Anna began his survey of the Alamo fortifications and surrounding area to familiarize himself with the area.

The Mexican army pillaged the Texian's stores in Béxar and began the bombardment of the Alamo in earnest. The Texian artillery returned fire with no obvious results.

James Bowie, in command of the garrison, fell ill. The garrion's surgeon described his illness as a "A peculiar disease of a peculiar nature." Jim Bowie relinquished his command of the garrison to Travis.

The Alamo's well proved inadequate in supplying the garrison's water needs. This forced the defenders to obtain water from the acequia and reservoir to east of the compound setting the stage for several skirmishes.

Travis penned his "To the people of Texas and all Americans in the world" letter. Defender Albert Martin carried the letter from the Alamo and added his own comments to the back of the document.

Historians consider this letter to be one of the most stirring documents in American history because it helped to establish the Texian national identity.

Day Three – Thursday February 25, 1836

The morning of February 25, 1836 dawned with summer-like temperatures opening one of the most eventful days of the siege.

The Mexicans launched an attack with approximately 400 - 450 soldiers personally led by General Castrillon. The Matamoros Battalion and three companies of cazadores made up the attacking force. They came from the area of the river battery through Pueblo de Valero's jacales and buildings advancing to within 50-100 yards from the Alamo's walls.

After two hours of fighting, The Texians finally forced a Mexican withdrawal using the ditches and outworks. They inflicted only light casualties on their attackers. Sometime during the fighting, Texian sorties burned the jacales closest to the Alamo. At the same time, the Mexicans established new fortifications near the McMullen house.

As the Mexicans advanced through the pueblo, they discovered a young woman and her mother in one of the houses. Although already married, Santa Anna took advantage of the situation, arranged a false marriage, and quickly consummated the relationship.

That night, the temperatures dropped into the 30's. Under the cover of darkness, William B. Travis sent Colonel Juan Seguin to find General Houston and ask for help. The defenders ventured out again burning even more jacales. There is some evidence that at least nine men deserted the garrison and gave information to Santa Anna where the Texians had hidden at least 50 rifles.

The day's fighting was not a victory for the Texians. The Mexicans had established artillery and infantry entrenchments in La Villita and the Alameda, but the Texians proved that as unorganized as they were, they could fight.

Day Four – Friday February 26, 1836

The Texians burned more jacales during the night. It soon became obvious that the Alamo's water well would not supply the needs of a 150+ people in the garrison. They would have to obtain water from the nearby acequia.

The overnight arrival of a norther dropped the temperatures to near freezing. As daylight broke, a Texian foray went outside the walls to obtain water and wood. A small skirmish erupted with the Mexican troops under General Sesma. Mexican casualties were slightly heavier than in earlier fights due to the Texian's eastern-facing cannon.

Day Five – Saturday February 27, 1836

The fifth day of the siege was again cold with temperatures ranging in the 30s.

Having exhausted their own supplies, the Mexicans pillaged BŽjar of foodstuffs and perishables. When they in turn depleted these, they sent troops to nearby ranchos to forage livestock and corn.

In a decisive move, the Mexicans cut off the eastern acequia's water supply at its source: the San Antonio River. Not only did this end the minor skirmishes that had taken place from the beginning of the siege; it essentially eliminated the defender's major source of water.

The Matamoros battalion began work on trenches to the South of the Alamo compound. These entrenchments did not pass Santa Anna's inspection and so he ordered his men to dig new entrenchments closer to the Alamo under the direct supervision of General Amador.

Throughout the day, the Texians maintained constant fire on the Mexican work party. According to General Filisola, the Texians were seen working frantically on their own ditch inside the parapet of the cattle pen. This effort later proved fruitless and was harmful to the Alamo's defense by undermining the walls, essentially removing any walkway the defenders might have had exposing them to Mexican fire.

General Gaona received Santa Anna's letter of the 25th requesting him to send three battalions as quickly as possible. Gaona immediately complied, yet failed to forward any heavy siege guns because Santa Anna neglected to include this request in his dispatch.

Day Six – Sunday February 28, 1836

Mexicans receive intelligence that 200 Texian reinforcements from Goliad are en route to the Alamo.

The morale within the compound is high. According to Mrs. Dickinson, Crockett took up a fiddle and challenged John McGregor, a Scot with bagpipes, to a contest of instruments.

Day Seven – Monday February 29, 1836

The Mexican's Jimenez battalion and the cavalry under command of General Ramirez y Sesma are ordered down the Goliad road to intercept any reinforcements that might have been sent by Fannin.

The Mexicans propose a three-day armistice and several Tejanos leave Alamo during the cease-fire.

Day Eight – Tuesday March 1, 1836

Thirty-two reinforcements from Gonzales arrive.

General Sesma advances towards Goliad to seek out Texian reinforcements coming to the aid of the Alamo. Finding none, he returns to Bexar.

The Alamo's 12-pound gunnade fires two shots, one of them hitting Santa Anna's headquarters.

Day Nine – Wednesday March 2, 1836

Travis receives a report that there is corn at the Seguin ranch. He sends a detatchment headed by Lt. Menchaca to retrieve it.

Mexican forces discover a hidden road within pistol shot of the Alamo and post the Jimenez battalion there to cover it.

Unknown to the defenders, Independence has been declared at Washington-on-the-Brazos.

Day Ten – Thursday March 3, 1836

James Butler Bonham arrives with news of reinforcements. He reports that sixty men from Gonzales are due and that an additional 600 would soon be en route.

The Texians fire several shots into the city in celebration.

Santa Anna receives word of Mexican General Urrea's victory at San Patricio. In celebration, the Mexcians ring church bells and there is revelry in the camp.

The lead elements of General Gaona's Brigade arrive. These are reinforcements needed for a successful assault.

Day Eleven – Friday March 4, 1836

Santa Anna gathers his officers for a council of war.

It is decided that when the final assault takes place, that they will take no prisoners. The time for the assault will be determined tomorrow.

Having been consolidated into two batteries, the Mexican artillery, is brought to within 200 yards of the compound.

More Texian reinforcements arrive in the late hours.

Day Twelve – Saturday March 5, 1836

Santa Anna issues orders for the assault to begin on the following day utilizing four assault columns and one reserve column.

Santa Anna calls for reconnaissance to determine Mexican attack positions and approaches.

A messenger arrives at the compound with the grim news that reinforcements aren't coming.

Travis gathers his men and informs them of their options.

At midnight the Mexicans begin moving into attack position.

At Midnight on March 5, 1836, Santa Anna's troops began moving into position for their planned attack of the Alamo compound. For several hours, the soldiers lay on the ground in complete darkness. About 5:30 A.M., they received the order to begin the assault.

The massed troops moved quietly, encountering the Texian sentinels first. They killed them as they slept.

No longer able to contain the nervous energy gripping them, cries of "Viva la Republica" and "Viva Santa Anna" broke the stillness.

The Mexican soldiers' shouts spoiled the moment of surprise.

Inside the compound, Adjutant John Baugh had just begun his morning rounds when he heard the cries. He hurriedly ran to the quarters of Colonel William Barret Travis. He awakened him with: "Colonel Travis, the Mexicans are coming!" Travis and his slave Joe quickly scrambled from their cots. The two men grabbed their weapons and headed for the north wall battery. Travis yelled "Come on boys, the Mexicans are on us and we'll give them Hell! "Unable to see the advancing troops for the darkness, the Texian gunners blindly opened fire; they had packed their cannon with jagged pieces of scrap metal, shot, and chain. The muzzle flash briefly illuminated the landscape and it was with horror that the Texians understood their predicament. The enemy had nearly reached the walls of the compound.

The Mexican soldiers had immediate and terrible losses. That first cannon blast ripped a huge gap in their column. Colonel José Enrique de la Peña would later write "...a single cannon volley did away with half the company of Chasseurs from Toluca." The screams and moans of the dying and wounded only heightened the fear and chaos of those first few moments of the assault.

Travis hastily climbed to the top of the north wall battery and readied himself to fire; discharging both barrels of his shotgun into the massed troops below. As he turned to reload, a single lead ball struck him in the forehead sending him rolling down the ramp where he came to rest in a sitting position. Travis was dead. Joe saw his master go down and so retreated to one of the rooms along the west wall to hide.

There was no safe position on the walls of the compound. Each time the Texian riflemen fired at the troops below, they exposed themselves to deadly Mexican fire. On the south end of the compound, Colonel Juan Morales and about 100 riflemen attacked what they perceived was the weak palisade area. They met heavy fire from Crockett's riflemen and a single cannon. Morales's men quickly moved toward the southwest corner and the comparative safety of cover behind an old stone building and the burned ruins of scattered jacales.

On the north wall, exploding Texian canister shredded but did not halt the advance of Mexican soldiers. Cos's and Duque's companies, now greatly reduced in number, found themselves at the base of the north wall. Romero's men joined them after his column had wheeled to the right to avoid deadly grapeshot from the guns of the Alamo church.

General Castrillón took command from the wounded Colonel Duque and began the difficult task of getting his men over the wall. As the Mexican army reached the walls, their advance halted. Santa Anna saw this lag and so committed his reserve of 400 men to the assault bringing the total force to around 1400 men.

Amid the Texian cannon fire tearing through their ranks, General Cos's troops performed a right oblique to begin an assault on the west wall. The Mexicans used axes and crowbars to break through the barricaded windows and openings. They climbed through the gun ports and over the wall to enter the compound.

General Amador and his men entered the compound by climbing up the rough-faced repairs made on the north wall by the Texians. They successfully breached the wall and in a flood of fury, the Mexican army poured through.

The Texians turned their cannon northward to check this new onslaught. With cannon fire shifted, Colonel Morales recognized a momentary advantage. His men stormed the walls and took the southwest corner, the 18-pounder, and the main gate. The Mexican army was now able to enter from almost every direction.

In one room near the main gate, the Mexican soldiers found Colonel James Bowie. Bowie was critically ill and confined to bed when the fighting began. The soldiers showed little mercy as they silenced him with their bayonets.

The Texians continued to pour gunfire into the advancing Mexican soldiers devastating their ranks. Still they came.

When they saw the enemy rush into the compound from all sides, the Texians fell back to their defenses in the Long Barracks. Crockett's men in the palisade area retreated into the church.

The rooms of the north barrack and the Long Barracks had been prepared well in advance in the event the Mexicans gained entry. The Texians made the rooms formidable by trenching and barricading them with raw cowhides filled with earth. For a short time, the Texians held their ground.

The Mexicans turned the abandoned Texian cannon on the barricaded rooms. With cannon blast followed by a musket volley, the Mexican soldiers stormed the rooms to finish the defenders inside the barrack.

Mexican soldiers rushed the darkened rooms. With sword, bayonet, knife, and fist the adversaries clashed. In the darkened rooms of the north barrack, it was hard to tell friend from foe. The Mexicans systematically took room after room; finally, the only resistance came from within the church itself.

Once more, the Mexicans employed the Texians' cannon to blast apart the defenses of the entrance. Bonham, Dickinson and Esparza died by their cannon at the rear of the church. An act of war became a slaughter. It was over in minutes.

According to one of Santa Anna's officers, the Mexican army overwhelmed and captured a small group of defenders. According to this officer, Crockett was among them. The prisoners were brought before Santa Anna where General Castrillón asked for mercy on their behalf. Santa Anna instead answered with a "gesture of indignation" and ordered their execution. Nearby officers who had not taken part in the assault fell upon the helpless men with their swords. One Mexican officer noted in his journal that: "Though tortured before they were killed, these unfortunates died without complaining and without humiliating themselves before their torturers."

Santa Anna ordered Alcalde Francisco Ruiz to gather firewood from the surrounding countryside and in alternating layers of wood and bodies the dead were stacked.

At 5:00 O'clock in the evening the pyres were lit. In this final act, Santa Anna's "small affair" ended.