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TiMELiNES

c. 10th century CE

Variolation practiced in China

Early forms of variolation were used in China to confer protection against smallpox.

Canonical milestoneChina1 timeline

Context

Appears In

TimelineTimeline of Smallpox Eradication

Position 1

Authority

Sources

WHOConfidence 99%

Taxonomy

Tags

public-healthmedicinesmallpox