calendar of 365 days without leap years, with an era beginning in the 6th century
The Armenian calendar is a 365-day calendar system that began in the 6th century and does not include leap years. It remains culturally significant to Armenia, though it differs from the widely used Gregorian calendar that accounts for leap years to stay aligned with Earth's orbit.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).