Conversation so far:
What privileges did the Andriana people have?
The Andriana caste were originally the source of nobility and they specialized in the rituals and warrior occupations in the Merina society
Did the Andriana people's privileges last a long time?
In the 19th century when Merina conquered the other kingdoms and ruled most of the island, a much larger army was needed, and the soldiers then included the Hova caste

Question: Are there any other interesting aspects about this article?
Self-contained rewrite: Are there any other interesting aspects about this article, besides Andriana people's privileges?