The golden age

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Across
  1. 1. Who is the scientist who divided numbers into even and odd numbers?
  2. 4. what is the name of the well-known palace in Spain?
  3. 6. Who is the founder of algebra?
  4. 7. Ibn Sina is also known by his Latinized name, Avicenna. What is the modern-day country where he was born in?
  5. 8. When was the Great mosque of Cordoba built? in __th century
Down
  1. 2. Al-Farghani was also known as ?
  2. 3. What is the key principle underlying the acceptance and respect of others who belong to different cultures and religions?
  3. 5. Ibn Sina is often referred to as the "Prince of _."