Place the following events in the correct chronological order.

Songhai overtook Mali.
Sundiata took over Ghana.
Mansa Musa brought Muslim scholars, artists, and teachers to Mali.
Mali became the center of trans-Saharan trade.

1. Sundiata took over Ghana.

2. Mali became the center of trans-Saharan trade.
3. Mansa Musa brought Muslim scholars, artists, and teachers to Mali.
4. Songhai overtook Mali.