Transport & space · c. 1000
Polynesian wayfinding
Navigators read stars, swells and birds to find specks of land across thousands of km.
Without instruments, Polynesian navigators used star compasses, ocean swell patterns and wildlife to steer double-hulled voyaging canoes. By about 1250 they had settled Hawaii, Rapa Nui and New Zealand, the last major landmasses reached by humans. The 1976 Hokule'a voyage to Tahiti proved the methods work.
What it built on 2
Related measurements
The dashed line marks when it first worked.
World population over a million years Latest: 6.27k million people (2000) Source: DeLong 1998, table 'Total World Population' (Kremer series); Kremer 1993, Population Growth and Technological Change: One Million B.C. to 1990, QJE 108(3)