Task: Text Categorization
Input (English): This empire's first ruler defeated the Kaniaga dynasty at the Battle of Kirina and established this empire. That man was named Sundiata Keita, and all of the resulting rulers of this empire were descended from him. One of this empire's greatest cities was Timbuktu, a great center of trade where many libraries and Islamic universities were built. This empire's most famous ruler brought with him sixty thousand people and two hundred camels laden with gold on his hajj. For 10 points, name this empire, whose ruler Mansa Musa depreciated the value of gold in Cairo during his pilgrimage to Mecca.
Output (English): History