The route was first designated on September 26, 1939 as PR 9. PR 9 was transferred to PR 1836 on June 2, 1960 to commemorate the year that Texas won its independence from Mexico. The route has remained on the same roads since 1939. In September 2001, the section of PR 1836 connecting Battleground Road to the park was renamed Juan N. Seguin Boulevard in honor of Juan Seguín, a hero of the Texas Revolution.