Some words of HISTORY

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Across
  1. 2. to discover/explore something
  2. 5. to increase a speed of some processes or actions
  3. 6. a period equivalent to 100 years
  4. 8. to be face to face with argumentative intent
  5. 9. a natural end of an era accompanied by economic, political and cultural crisis of the states
  6. 10. the ancient period before the Middle Ages
  7. 12. intellectual period of the late 17th and 18th centuries in Europe accentuating reason and individualism rather than tradition
  8. 13. a sovereign with a great mightness and degree ruling big and powerful country (Empire)
  9. 14. belonging to Islam
Down
  1. 1. with an impportant role
  2. 3. a serios and immediate danger/hazard
  3. 4. the process of estimating something
  4. 7. a buy-and-sell activity, especially on a large scale
  5. 8. living or occuring at the same time
  6. 11. to cause or mark the start of something new