Final answer:
When Timbuktu was invaded in 1591, the city's scholars faced various fates. Many were killed, while others were imprisoned, exiled, or forced to convert.
Step-by-step explanation:
When Timbuktu was invaded in 1591, the scholars faced different fates. According to historical accounts, many scholars were killed during the invasion. Some were imprisoned or exiled, and others were forced to convert to the religion of the invaders. This invasion led to a decline in Islamic scholarship in Timbuktu until it later recovered.