I don't have enough context about what "291 BC" refers to specifically to write an accurate overview. "291 BC" is simply a year in ancient history, but without knowing which historical event, person, or development you're asking about, I cannot provide a meaningful explanation of what it is or why it matters. Could you provide more context?
AI-generated from the Wikipedia summary — may contain errors.
Year 291 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Megellus and Brutus (or, less frequently, year 463 Ab urbe condita). The denomination 291 BC for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Events
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).