What Norse explorer introduced Christianity to Greenland around 1000 A.D.?

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The Italian Giovanni Schiaparelli is best known today for naming most of the canals where?

What is the device that measures the number of steps you take when walking or running?

What was the name of Sherlock Holmes" intelligent brother?

On which Caribbean island are the Blue Mountains?

Which is the largest of Neptune's moons?

What is the heaviest internal organ in the human body?

Which British designer invented the Dual Cyclone bagless vacuum cleaner?

Who played Butch Cassidy?

'Video Killed the Radio Star" was the debut music video on which channel in 1981?

Who did Michael Caine play in the 1965 film "The Ipcress File"?

Who was the first Chancellor of the German Federal Republic?

Where did Abraham Lincoln give his historic speech?

Who was the only slave ever known to have stayed in John Adams" household?

Which English band had the hit song "Unbelievable"?

Andorra is part of which continent?