Christmas starts at six o'clock on Christmas Eve
Not at midnight and not on the morning of the 25th. At 18:00 on 24 December the national broadcaster rings the church bells and Christmas is declared open; the meal and the presents follow that evening. 26 December, annar í jólum, is the night everyone goes out.
The Encyclopaedia of Icelandic Holidays — The Reykjavík Grapevine — Haukur S. Magnússon
Thirteen Yule Lads and a shoe in the window
From 12 to 24 December children put a shoe on the windowsill each night. A lad comes down from the mountains, one per night, and leaves a sweet or a small thing — or a rotten potato, if the day went badly. They are named for what they steal: the spoon-licker, the pot-scraper, the sausage-swiper, the one who sniffs at doorways for baking, the one who peers through windows.
Jólasveinar — the thirteen Icelandic Yule lads — Arctic Portal, Akureyri, Iceland
Grýla, who is older than the Christmas she belongs to
An ogress in the mountains with a bag on her back, who takes children who misbehave and boils them. Terry Gunnell, head of folkloristics at the University of Iceland, puts her in writing by about 1300 — but not at Christmas. She was a personification of winter closing in, and of a landscape Icelanders understood themselves to be tenants of rather than owners. Medieval verses have her coming down from the outer fields with forty tails, a knife in her hand, for the children who cry for meat during Lent.
Why Iceland's Christmas Witch Is Much Cooler (and Scarier) Than Krampus — Smithsonian Magazine — Alex Palmer
The Yule Cat, which eats you for not having new clothes
A giant cat that takes anyone who does not get a new piece of clothing before Christmas. The practical reading is not subtle: new wool meant the autumn work was done, and a household that had not finished its wool had somebody in it who had not worked.
Why Iceland's Christmas Witch Is Much Cooler (and Scarier) Than Krampus — Smithsonian Magazine — Alex Palmer
The Húsagatilskipun of 1746, which is Danish
Iceland was ruled from Copenhagen, and the decree everyone cites is a Danish royal one: Christian VI issued the Húsagatilskipun at Hirschholm on 3 June 1746, and it was laid before the Alþingi the year after. Read in full, it is an ordinance about how a household should be run, and two of its clauses matter more than the one it is famous for. The fourth requires parents who can read — or a servant who can — to start children reading "saa snart Børn ere 5 til 6 Aar gamle", as soon as they are five or six. The fifth requires that in every house where anyone can read, a chapter be read aloud "i det mindste een Gang om Dagen, helst om Vinteren" — at least once a day, and PREFERABLY IN WINTER. Where nobody in the house could read, those who could be spared were to walk to the next farm where somebody could. Around 1740 only about a third of Icelandic adults read well. This is the decree that changed that, and it is why the same document turns up at the other end of this record under the book flood.
Anordning om Hustugt paa Island, Hirschholm 3 June 1746 — in Lovsamling for Island, vol. 2 (1721–1748), pp. 606–619 — Oddgeir Stephensen & Jón Sigurðsson, Copenhagen 1853; scanned by the National and University Library of Iceland
The Santa-fication, and the museum undoing it
Through the twentieth century the lads were softened into Santas: bellies, red-and-white fur, and gifts instead of theft, with the Dutch shoe custom arriving alongside. The National Museum of Iceland has spent years pushing back — putting them into seventeenth- and eighteenth-century rags in undyed local wool. Gunnell's description of the intended effect is "aged Hell's Angels without bikes". Actors play them at the museum through the thirteen days.
Why Iceland's Christmas Witch Is Much Cooler (and Scarier) Than Krampus — Smithsonian Magazine — Alex Palmer
Þorláksmessa, 23 December
The feast of Saint Þorlákur Þórhallsson, bishop of Skálholt, who died on 23 December 1193 and was made patron saint of Iceland by John Paul II in 1984. It is kept by eating kæst skata — fermented skate — at lunch, and the smell is the point of half the stories about it.
Thorláksmessa — Gastro Obscura — Atlas Obscura (Gastro Obscura) — Rachel Rummel
Jólabókaflóðið — the Christmas book flood
Books are the default Christmas present, and the publishing year is built around it. Every household gets Bókatíðindi, the Publishers' Association catalogue of the year's new books, and most Icelandic hardbacks are timed to appear in the run-up. Books are unwrapped on 24 December and read that night, in bed, with chocolate. It began with a shortage: after the war Iceland rationed imports hard, and paper was one of the few things that got through.
The Christmas Book Flood: Iceland's Literature-Loving Holiday Tradition — Mental Floss — Shaunacy Ferro
Þrettándinn, 6 January
The thirteenth day, and the end of it — torch processions, bonfires and fireworks. Christmas in Iceland is not a day, it is a fortnight with a gate at each end.
The Encyclopaedia of Icelandic Holidays — The Reykjavík Grapevine — Haukur S. Magnússon