Complex sentence: One of the last "great gold rushes" was the Klondike Gold Rush in Canada's Yukon Territory (1896--99), immortalized in the novels of Jack London, the poetry of Robert W. Service and Charlie Chaplin's film "The Gold Rush".
Split into simpler sentences: One of the last "great gold rushes" was the Klondike Gold Rush in Canada's Yukon Territory (1896--99). This gold rush immortalized in the novels of Jack London, the poetry of Robert W. Service and Charlie Chaplin's film "The Gold Rush".