Assertion: songhai empire | /r/CapableOf | spell songhay
Facets:
value: flourished 15th–16th century)
type: TEMPORAL
Source sentences:
text: Songhai empire, also spelled Songhay, great trading state of West Africa (flourished 15th–16th century), centred on the middle reaches of the Niger River in what is now central Mali and eventually extending west to the Atlantic coast and east into Niger and Nigeria.