Have You Seen Halley’s Comet..???…Don’t Say You Heard It From Me But, Did You Know…(Video)

American author and humorist Mark Twain was born on November 10, 1835, during a visit from Halley's Comet. Halley's Comet is visible from earth every 75 to 76 years. Mark Twain died in 1910, the day Halley's Comet returned...!!