Zhang Heng: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Anniversary information added. | Jan 01, 2026 | ||
| Anniversary information added. | Jan 01, 2026 | ||
| First paragraph modernization. | May 01, 2024 | ||
| Invalidated site: The Early History of Seismology (to 1900). | Jan 29, 2020 | ||
| Media added. | Jun 10, 2016 | ||
| New article added. | May 08, 2009 |
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