Swedish Name Days (Namnsdagar) (瑞典命名日曆)

THE SWEDISH NAME-DAY CALENDAR (namnsdagar) — the living remnant of the medieval calendar of saints: every day of the Swedish year carries one or two personal names, printed in every almanac since the Middle Ages and standardized as the modern namnlängd (the 2001 consolidation with dated additions 2015/2018/2022). THE UNIQUENESS LAW is the structural jewel, asserted at load: 627 names across 366 days and EVERY ONE APPEARS EXACTLY ONCE — a perfect matching of names to dates, by design, which makes the reverse lookup total. THE NAMELESS-FEAST LAW: exactly SEVEN days carry no personal names — Nyårsdagen, Kyndelsmässodagen, Skottdagen (the leap day belongs to no one), Marie bebådelsedag, Johannes Döparens dag, Allhelgonadagen, Juldagen — the complete roster asserted. THE ROYAL CELLS asserted: Karl 28 Jan (the King), Viktoria 12 Mar (the Crown Princess), Gustav 6 Jun (the national day), Silvia 8 Aug (the Queen), Eva on Julafton — and LUCIA on 13 December, the name day that became a national festival of light. Corpus scraped and cross-compared cell-by-cell across two witnesses (346/366 verbatim; arbitrations recorded). Both directions served. Norse becomes three. Pure compute and served corpus, no LLM.

Cost: 1 TIAN Points per call. tRPC procedure namnsdagar.day.