Ghana: Ghana inevitably fell when it couldn’t battle off intruders from the Sahara within the 13th century.
Mali: After the rule of Mansa Musa, the Mali realm inevitably cycled through rulers who needed the capacity to oversee such a huge domain and Mali steadily declined in power and influence.
Songhai: The wealth of the gold and salt mines drew invaders, though, and within the late sixteenth century a Moroccan armed force assaulted the capital. The Songhai domain, as of now debilitated by inner political battles, went into decay. Also the Moroccan forces under Judar Pasha conquered the Songhai Askia Ishaq II which also lead to the fall.
I wanted to answer earlier but I got banned yesterday and the time didn't end yet...but finally ended now....
Please correct any mistakes in my sentences!!! I'd be happy to fix it!!! :)