What did Halley's Comet have effect on people?

Answer 1

There's nothing all that special about the comet itself other than that it happenes to be the first one that was successfully predicted. Halley realized that several of the comets reported in historical accounts were probably the same object orbiting the sun with a period of about 76 years and predicted its return (unfortunately, the period was long enough that he died before seeing his prediction came true).

Answer 2

Other than the sale of comet posters and sky-watching guides, comets have little or no economic value. But not everything can be measured solely on its economic value.

In the long run as the human race expands into space, comets will become fantastically valuable as sources of volatile gasses and liquids, and of rare compounds unavailable on the Earth or Moon. These comets will probably be captured and mined for their raw materials.

Certain sentimentally significant comets like Halley will be preserved as "space landmarks", much as national parks are today.

Answer 3

Halley's Comet didn't do any effect to peoples, only that comet scarred peoples.