Complex sentence: Rockville High School is the only high school in Maryland that has a pipe band; the band originated at nearby Robert E. Peary High School in 1961 and moved to RHS when Peary High closed in 1984.
Split into simpler sentences: Rockville High School was the only high school in Maryland that had a pipe band. The band originated at nearby Robert E. Peary High School in 1961 and moved to RHS when Peary High closed in 1984.