words to with history

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Across
  1. 2. what we live
  2. 4. measured in minutes, seconds and hours
  3. 6. very old
  4. 7. people write in it daily
  5. 9. a graphical representation of a period of time
Down
  1. 1. a person who studies history
  2. 3. what happens in the past is
  3. 5. only something that people can beat
  4. 6. to examine something
  5. 8. in time and no longer existing