Spanish Era (Era Hispanica) (西班牙紀元)

THE SPANISH ERA (Era Hispanica) — the year-count of medieval Iberia: for a thousand years the charters, tombstones and law codes of the Visigothic and medieval kingdoms were dated not Anno Domini but ERA — a count from 1 January 38 BC, exactly 38 ahead of the Christian era (AD 903 = Era 941, the textbook anchor, asserted). When the Cid's charters carry a year, this is the year they carry. THE ORIGIN IS A GENUINE MYSTERY SERVED AS ONE: nobody knows why 38 BC — Isidore of Seville derived 'era' from aes (bronze) and Augustus' general tax on Hispania, the era's Arabic name in al-Andalus (taʾrīkh al-ṣufr) has been read as 'the Bronze Era,' and a rival theory starts it from an Easter table; all named, none crowned. THE STAGGERED DEATHS ARE THE LAWS: Catalonia abolished it in 1180, Aragon 1350, Valencia 1358, Castile 1383 (the Cortes of Segovia — its decree ending Era 1421 to begin AD 1383, the twin asserted), Navarre ~1410, Portugal LAST in 1422 — strict order proven, and any date returns WHICH realms still used the count. Served only within the era's documentary life, refused outside. Christian becomes five systems. Pure compute, no LLM.

Cost: 1 TIAN Points per call. tRPC procedure spanishEra.year.