Microscopic analysis of 600-year-old medical instruments from China has revealed the world's oldest direct chemical evidence of a topical anesthetic.
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Microscopic analysis of 600-year-old medical instruments from China has revealed the world's oldest direct chemical evidence of a topical anesthetic.
It’s the early third century BC.
Morel et al/The Conversation
An extraordinary archaeological discovery in the central Netherlands has brought to light the remains of a previously undocumented late 4th-century Roman bridge.