Skip to content
★Maps of History Start free

Norse and Aztecs · TURNING POINT ·

Crête ice core (1974)

On the Norse and Aztecs map as “Crête — Dansgaard’s core”

1974 — A 404-metre core drilled at Crête, on the crest of the ice sheet, gave Willi Dansgaard’s team a record of about 1,400 years. In 1975 they read it beside Norse history and concluded that the climate had a strong impact on the Greenland colony.

When
Type
Turning point
Chapter
Medieval Warm Period and Little Ice Age (chapter 1 of Norse and Aztecs)
Atlas
Climate and Innovation: The Norse and the Aztecs, c. 790–1521
Also in
WW2
Open this map in the interactive atlas →

WW2 is free — every chapter. Try chapters 1–2 of any 2 other atlases (3 with a free account). Opening a new atlas uses one of them. Membership opens all 21 — Join.

Free printable Norse and Aztecs study guide, sent by email ↓

Map showing Crête ice core (1974), turning point in Climate and Innovation: The Norse and the Aztecs, c. 790–1521
TURNING POINT · CLIMATE AND INNOVATION: THE NORSE AND THE AZTECS, C. 790–1521

In the same chapter

● Summit cores● Lake muds● Flateyjarbók

Related

THE FREE PRINTABLE STUDY GUIDE

Join the Dispatch — a short welcome series, then a letter when a new atlas opens — and the printable study guide for Climate and Innovation is yours now, free.

NO TRACKING · YOUR ADDRESS IS USED FOR THE DISPATCH AND NOTHING ELSE · UNSUBSCRIBE ANYTIME