**9. Conclusion**

At the end of this work on "the transmission of national languages and the conservation of cultural heritage," it emerged that language plays a major role in the conservation of a people's cultural heritage. It was noted that because of the neglect of local languages in favor of official languages in most African countries, several aspects of culture are disappearing or have disappeared, with enormous consequences for the socioeconomic development of the populations. This transmission must be sustainable. It will therefore be necessary to do a great deal of fieldwork to collect and rehabilitate objects, elements of the natural environment, everything that is living and non-living in the environment, as well as everything that concerns human activities.
