21s

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Across
  1. 5. - Ship of the Pilgrims (9 letters, nine)
  2. 6. - Ancient Egyptian tomb shape (7 letters, seven)
  3. 12. - Japanese warrior class (7 letters, seven)
  4. 13. - French prison that became known internationally as a symbol of the abuses of the monarchy (8 letters, eight)
  5. 14. - Mongolian conqueror (6 letters, six)
  6. 15. - Ancient Egyptian monarch (7 letters, seven)
Down
  1. 1. - Ancient Roman amphitheater (9 letters, nine)
  2. 2. - Medieval military expedition (7 letters, seven)
  3. 3. - Combatant in ancient Rome (9 letters, nine)
  4. 4. - French prison stormed in 1789 (8 letters, eight)
  5. 7. - Series of rulers from the same family (7 letters, seven)
  6. 8. - Warriors of ancient Greece (8 letters, eight)
  7. 9. - French military leader (8 letters, eight)
  8. 10. - Norse explorer (6 letters, six)
  9. 11. - Roman ruler assassinated in 44 B.C. (6 letters, six)
  10. 16. - Mesoamerican culture in Mexico (6 letters, six)