Complex sentence: The Beacham Theatre was once part of the vaudeville circuit and hosted celebrities such as John Phillip Sousa and the Ziegfeld Follies and operated as a movie theater with then state-of-the-art technology from the silent film era until 1975.
Split into simpler sentences: The Beacham Theatre was once part of the vaudeville circuit and hosted celebrity acts such as John Phillip Sousa and the Ziegfeld Follies. It operated as a movie theater with then state-of-the-art technology from the silent film era until 1975.