3 divisions of time after Buddha's death: Former Day, lasting 1000 or 500 years, when the Dharma is upheld; Middle Day, lasting 1000 or 500 years, when a semblance of the Dharma remains; Latter Day, lasting 10000 years, when the Dharma declines
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).