As illustration only: a worldmap with the Ka'ba as centre.

Ja’far Ibn Shams al-Khilafah (d1225),
Kitab al Adab (Book of arts)

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Taken from: alwaraq.net

 

…four people do not know these four quantities: the generosity in the Romans, and the fulfillment in the Turk, and courage in the Nabateens (1), and sadness in Zinj.

(1) Nabateens: were an ancient Arab people who inhabited northern Arabia and the southern Levant.