Terrible, Horrible CROSSWORD

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Across
  1. 6. to dig to find old objects
  2. 7. a statue or building to remember someone
  3. 9. broken parts of an old building
  4. 11. a famous story from long ago
  5. 13. to cut a picture into a hard surface
  6. 14. a line that shows when events happened
  7. 15. a period of ten years
  8. 17. an old object made by people
  9. 18. a group of families living together
  10. 19. a custom passed down in a family
  11. 20. to keep something safe
Down
  1. 1. to cut wood or stone into a shape
  2. 2. to find something new
  3. 3. a clue or proof
  4. 4. the history of your family or country
  5. 5. a person who studies old things
  6. 8. a special object from the past
  7. 10. an old story about gods
  8. 12. all people born around the same time
  9. 16. to slowly rot or break down