Omar Khayyam

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Across
  1. 2. Place of origin?
  2. 5. What was their biggest issue?
  3. 6. What were they globally famous for?
  4. 7. A __ was named after them
  5. 9. What solar calendar did they create?
  6. 10. What seat were they granted in Karakhanid?
Down
  1. 1. Where did they live?
  2. 3. They used __ to solve cubic equations
  3. 4. They laid the foundation for the __ theorem
  4. 5. Type of education they received?
  5. 8. Developed geometric methods for?