المصادر

https://blog.growlink.com/the-history-of-agriculture

https://en.wikipedia.org/wiki/History_of_agriculture

https://en.wikipedia.org/wiki/Saladin

https://en.wikipedia.org/wiki/Third_Crusade

https://www.worldhistory.org/image/9048/the-near-east-in-1135-ce/

https://www.worldhistory.org/image/9101/crusader-states-1200-ce/