Based on the clue '192 people were killed trying to cross this infamo...', what is the answer?

What is associated with: 1917 the us declares war on this hyphenated kingdom? What is associated with: 1917s king coal by this author was to the mining industry what an earlier work had been to the… What is associated with: 1918 no 2 absolute freedom of navigation upon the seas outside territorial waters? What is associated with: 1919 and sixpence? What is associated with: 1920 by eugene oneill? What is associated with: 1920 calvin coolidge? What is associated with: 1920 gopher prairie? What is associated with: 1920 painting by george grosz shows one of these machines karel capek named the next year?