Complex sentence: The Silent Parade was a silent protest march of 8,000-10,000 African Americans down Fifth Avenue starting at 57th Street in New York City on July 28,1917 in protest to murders, lynchings, and other violence directed towards African Americans.
Split into simpler sentences: The Silent Parade was a silent protest march of between 8,000 and 10,000 African Americans that started at Fifth Avenue and 57th Street in New York City on July 28,1917. The purpose of the parade was to protest murders, lynchings, and other violence directed towards African Americans.