Complex sentence: When Sam Houston arrived in Gonzales on March 11,1836, He was informed of the fall of the Alamo on March 13 when Susannah Dickinson made her way to Gonzales after being released by the Mexican Army in San Antonio.
Split into simpler sentences: When Sam Houston arrived in Gonzales on March 11,1836. Houston was informed of the fall of the Alamo on March 13 when Susannah Dickinson made her way to Gonzales after being released by the Mexican Army in San Antonio.