The moment

The ruler of Mali, a kingdom rich in gold, travelled to Mecca by way of Cairo. According to the Mamluk official al-ʿUmarī he gave away so much gold that Cairo's gold market was depressed for years. Tradition credits him with the mosques raised on his return, above all Timbuktu's Djinguereber.
People: Mansa Mūsā, Abū Isḥāq al-Sāḥilī, al-ʿUmarī