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"path": "/science/news-science/ancient-surgical-tools-found-in-china-may-hold-the-earliest-chemical-evidence-of-anesthesia/",
"publishedAt": "2026-05-26T17:20:16.000Z",
"site": "https://www.zmescience.com",
"tags": [
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"Chemistry",
"News",
"Anesthesia",
"china",
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"textContent": "Laser analysis found traces of a toxic painkilling plant on Ming Dynasty instruments.",
"title": "Ancient Surgical Tools Found in China May Hold the Earliest Chemical Evidence of Anesthesia"
}