Hunter M crossword puzzle

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Across
  1. 2. A emperor of Han dynasty and he sent Zhang Quian west
  2. 6. A sickness that traveled along the silk road.
  3. 7. A man named Zhang Qian found ------ in the west
  4. 8. It was known as purple -----
Down
  1. 1. A chinese invention called a fire cannon
  2. 3. A region in east asia
  3. 4. Explorer that traveled through china
  4. 5. A precious stone that was used for sculptures and jewelry