Based on the clue 'at the turn of the century cripple creek in this s...', what is the answer?

Based on the clue 'at the top spot for 5 weeks you dont mess around w...', what is the answer? What is associated with: at the touch of a button on july 1 1939 this clay puett invention made its horse racing debut? Based on the clue 'at the turn its rhine river principality by a leng...', what is the answer? Based on the clue 'at the turn of the 19th century he penned the sonn...', what is the answer? Based on the clue 'at the turn of the century he worked out of the te...', what is the answer? Based on the clue 'at the turn of the century railroads began to hire...', what is the answer? Based on the clue 'at the turn of the century the area was divided in...', what is the answer? Based on the clue 'at the u of richmond this retired general stormed ...', what is the answer?