Under the reign of Kigeli IV in the 1860s, the Rwandan Kingdom expanded significantly, consolidating its power and territory in East Africa. This period marked the establishment of a centralized monarchy that played a crucial role in the region's political dynamics. The expansion not only strengthened the kingdom's influence but also laid the groundwork for future conflicts and the complex ethnic relations that would emerge in Rwanda.

The expansion of the Rwandan Kingdom under Kigeli IV in the 19th century contributed significantly to the richness of African oral poetry traditions. These traditions later influenced postcolonial poets who reflected on pre-colonial states, emphasizing themes of identity, heritage, and resilience in their works.