What was the nationality of William Clark: Italian, American, Chinese or Dutch?

Queen Elizabeth's only daughter was born in 1950. What's her name?

Can you name the twin sisters whose rival advice columns ran in hundreds of newspapers throughout the English speaking world?

After the San Francisco earthquake and fire of 1906, architect Julia Morgan was called upon to rebuild the interior of which San Francisco hotel?

Who was Madonna married to from 1985-1989?

What are the first names of thumbs-up movie critics Siskel and Ebert?

Which game is played on a marked board divided into two halves, each side containing 12 alternately colored points?