Complex sentence: It was constructed in 1969 and has presented a variety of productions since then, most notably the "Fort Steele Follies"-a historic revue starring professional actors staged every afternoon from July 1st until Labour Day.
Split into simpler sentences: It was constructed in 1969 and has presented a variety of productions. One of the more notable is the "Fort Steele Follies", a historic revue starring professional actors staged every afternoon from July 1st until Labour Day.