Person78–139
Zhang Heng
Eastern Han polymath — astronomer, mathematician, engineer and poet — who twice served as Chief Astronomer (115–120 and 126–132), built a water-powered armillary sphere and in 132 presented the first known seismoscope.
- Dates
- 78 – 139
- Events
- 1 event
- Regions
- East Asia
- In the threads
- East Asia in the 1st–5th centuries
Events
- Zhang Heng presents the first seismoscope132 · East Asia