Inō Tadataka's survey map of Japan
Mapa geodésico de Japón de Inō Tadataka
- Date
- 1800-1821 · confidence high
- Place
- Edo (Tokyo), Japan
- Credited to
- Inō Tadataka
- People
- 👤 Inō Tadataka1745–1818
- Field
- Cosmos & Earth
What was discovered
A survey of the entire coast of Japan carried out on foot, measuring distances and taking astronomical observations, which produced a highly accurate map and a good estimate of the length of a degree of meridian. It was completed three years after his death.
What it led to
- official cartography of Meiji Japan
- the Siebold Incident over the map leaving for Europe (1828)