Final answer:
The Vai script is an indigenous script found in Sierra Leone and Liberia. It represents the cultural heritage of the Vai people and is part of a broader tradition of indigenous script development in West Africa.
Step-by-step explanation:
The Vai script is an indigenous writing system originating in West Africa, specifically found in Sierra Leone and the country to its southeast, Liberia. This script is part of the rich cultural heritage of the Vai people, who live in the region surrounding the border between the two countries. The development of the Vai script is significant as it reflects the cultural and intellectual achievements of the Vai people. It is one of several scripts developed in Africa, often emerging in the early nineteenth-century as a means of written communication. While the Vai script is unique to the region, parallel developments occurred across West Africa, including various other indigenous scripts that have been studied and documented by researchers like David Dalby.