The school traces its origins back to the 1917 "Schertz High School", later called "Schertz-Cibolo High School". In 1961 the school district was established and in 1967 Universal City was annexed into the district, formally becoming SCUC ISD. A decision was made to rename the school, however all the band jackets and other uniforms featured the letters SC for "Schertz-Cibolo," and it would have proved cost prohibitive to change it. A contest was held to name the school using those same initials of SC, and Samuel Clemens was the winner.
Samuel Clemens is better known by the pen name Mark Twain. == Notable alumni ==