The story of the Alamo began on the morning of February 23, 1836 when about 4,000 soldiers from the Mexican army of General Antonio Lòpez de Santa Anna arrived near the city of San Antonio where, in the Franciscan mission of El Alamo, a handful of about 150 American emigrants were barricaded. How could it have come to this? What had happened was that the government of Mexican Texas, to encourage the arrival of settlers in its territories, granted very favorable economic conditions that materialized with two laws in 1823 and 1825. Becoming Catholic, obeying Mexican laws and not having slaves were the essential requirements for those who wanted to start a new life in that area of ​​America. Each American emigrant was assigned land to be used for both livestock farming and agriculture, was provided for a six-year tax exemption and, in addition, those who married a Mexican woman were granted a further addition of land. It did not take long for a good part of Mexican Texas to be inhabited by American settlers, who soon came into conflict with the central government.

The final break came when it was realized that the guests were explicitly starting to talk about the separation of Texas from Mexico. A new law was passed that prohibited the entry of new American emigrants and those considered the leaders of the revolt began to be arrested. In response, the insurgents took over the city of San Antonio. In this context, the morning of February 23 came. The siege lasted 13 long days, at the end of which, on March 6, the Mexicans managed to get the better of the rebels after violent fighting, including hand-to-hand combat. Two dozen women and children present in the fort, as well as two slaves, were released, the other insurgents died in the fighting or were shot after the fall of the mission. The news of the Alamo massacre did not reach Washington until March 11 and made a huge impression. Many Americans from various parts of the United States left to join the regular Texan army that was intent on avenging the Alamo. Some time later, on April 21, 1836, at the Battle of San Jacinto, near present-day Houston, Santa Anna's forces were defeated. That clash marked the birth of the Republic of Texas, which would be annexed to the United States in 1845.https://extremelyinterestingfacts.quora.com/