Based on the clue 'calendar date with which the 20th century began', what is the answer?

What is referred to by 'caldecott medalist maurice 6'? Based on the clue 'caldillo de congrio is a chowder from this south a...', what is the answer? Based on the clue 'caldwell novel in which land set aside for the chu...', what is the answer? Based on the clue 'caleb bradham named his elixir this because it was...', what is the answer? Based on the clue 'calexico california lies opposite this aptly named...', what is the answer? Based on the clue 'calf length pants styled in colorful island prints...', what is the answer? Based on the clue 'calgary medicine hat are in this canadian provinc...', what is the answer? What is referred to by 'cali headlands'?