What are the Perseids meteor showers associated with?
Comet Halley
Comet Swift–Tuttle
Comet Shoemaker–Levy
Apophis Asteroid
In 1866, after the perihelion passage of Swift-Tuttle in 1862, the Italian astronomer Giovanni Virginio Schiaparelli discovered the link between meteor showers and comets. His findings put new light on a subject, and changed the approach of astronomers to comets. 
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Comet Halley
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