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The Reach of the American Empire
soldiers for 13 days until, on March 6, 1836, the Mexicans 
finally breached the walls and annihilated the entire garri-
son. Among those present inside the Alamo were the famed 
Tennessee  backwoodsman,  Davy  Crockett, and  Jim  Bowie, 
who carried a type of large knife that was later named after 
him. Two weeks later and 60 miles (100 kilometers) down 
the San Antonio River from the Alamo, Santa Anna’s army 
overran another group of Texans at Goliad, where the Mexi-
cans executed 430 men.
As noted by historian Richard Kluger, following the mas-
sacres at the Alamo and at Goliad, Houston stated in anger: 
“The day of just retribution ought not to be deferred.” Seek-
ing revenge and eager to bolster their call for independence, 
Sam Houston  and  his Texas  force led  a  surprise attack  on 
Santa Anna’s army at the battle of San Jacinto on April 21, 
1836. Houston’s men, in an attack that took less than half 
an hour, killed nearly half of the Mexican force (630 men) 
and captured the remainder, including Santa Anna himself. 
Only two Texans were killed and 20 or so wounded, includ-
ing Houston, who had taken a musket ball in his right tibia 
above the knee. On May 14 the Mexican general signed the 
Treaty of Velasco, which ended the revolution by recogniz-
ing Texas as an independent republic. Santa Anna agreed to 
the  Rio  Grande  as  the  border  between  Mexico  and  Texas, 
although he repudiated the treaty once he was set free and 
had returned to Mexico City. Houston, the hero of the revo-
lution, was elected as the first president of the new Republic 
of Texas. For nearly ten years, Texas was its own nation.
THE OREGON COUNTRY
While many Southerners chose to move west to Texas, where 
they could also take their slaves, Northerners looked to the 
Oregon  Country  as  their  western  destination.  Well  before  
the  great  movement  along  the  Oregon  Trail  that  involved 
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