General knowledge...?

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Across
  1. 4. ______ was found by Christopher Columbus
  2. 5. ______was written by a Chinese communist leader
  3. 7. ______ was created by Albert Einstein
  4. 8. a book called ______ was written by a german dictator
  5. 11. Finland was led by ______ from 1944-1946
Down
  1. 1. ______ was a ship designed by Thomas Andrews
  2. 2. The german enigma code was cracked by ______
  3. 3. The first nuclear bomb was developed by ______
  4. 6. The 2016 US election was won by ______
  5. 9. ______was painted by Da Vinci in the 1500s
  6. 10. ______ was invented by Thomas Edison