science and technology of the civilization

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Across
  1. 3. obscura it was invented by lbn haytham in 1038 CE.
  2. 6. the central exporter of wine, oil, jewelry and highly crafted works.
  3. 7. leader of the old babylonian.
  4. 8. rugs a vitalbpart of the persian culture.
  5. 11. the first writing system.
  6. 13. undertook a large-scale classification of plants and animals.
  7. 15. gardens one of the seven wonders of the world.
  8. 17. it was engaged in pottery of various shape and sizes artistically done.
  9. 18. age the third age of the world.
  10. 20. exchange of goods.
  11. 21. age Neolithic,paleolithic
Down
  1. 1. tablet its contain the sumerian historical information and culture.
  2. 2. great physician and surgeon
  3. 4. mesopotamia the inventors of sailboats.
  4. 5. provided us with important knowledge about ancient rome.
  5. 7. the science of medicine
  6. 9. age the last and worst age of the world.
  7. 10. egytians to heat metal ore.
  8. 11. sptolemy studied astronomy, geology,astrology,musics and other arts and sciences.
  9. 12. bubakr had developed the theory of relativity in 8th century CE.
  10. 14. were primarily a mercantile people engaged in overseas trade.
  11. 16. blowing the ancient egyptians was the first people to learn how to make it.
  12. 19. they used water por, and watermills for making cereals milling.