I don't know if this will help but maybe because no rights of citizenship were extended to African Americans and any successes they achieved was only permitted within a circumstated area.....Hope that helps
        
             
        
        
        
The Anglo-Nepalese War (1814<span>–16), also known as the Gurkha War, was fought between the Kingdom of Gorkha (present-day Federal Democratic Republic of Nepal) and the East India Company as a result of border disputes and ambitious expansionism of both the belligerent parties.</span>
        
             
        
        
        
<span>Like many Mesoamerican pyramids, each was constructed around a core of rubble held in place by retaining walls. The walls were then faced with adobe bricks, and then covered with limestone. The base of the Pyramid of the Sun measures 730 feet per side, with five stepped terraces reaching a height of some 200 feet.</span>