Complex sentence: In 1980, Schultz brought the Great Circus Parade and 100,000 visitors to the streets of Baraboo; in 1981 and 1982 he staged the largest Circus Parade in the world for the city of Chicago, attended by over one million spectators lining the Michigan Avenue parade route.
Split into simpler sentences: In 1980, Schultz brought the Great Circus Parade and 100,000 visitors to the streets of Baraboo. The Chicago Circus Parade was attended by over one million spectators lining the Michigan Avenue parade route.