Making history

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Across
  1. 5. This person travels in space.
  2. 6. This person discovers new places.
  3. 7. This person crosses the ocean.
  4. 8. This person writes music.
Down
  1. 1. This person invents cool things.
  2. 2. This person works in a laboratory.
  3. 3. This person design bridges.
  4. 4. This person paints pictures.
  5. 5. This person draw plans for buildings.