History of written English language

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Across
  1. 1. number of letters in the English alphabet
  2. 3. from which civilization is the English language derived
  3. 5. the first written forms of communication used...
  4. 6. Our letters represent _____ not words
  5. 8. the study of sound-letter relationships
Down
  1. 2. first civilization with written language
  2. 4. first written language
  3. 7. the smallest unit of SOUND