Assertion: syphilis | /r/AtLocation | the old world
Facets:
value: always
type: TEMPORAL
value: prior to columbus
type: TEMPORAL
Source sentences:
text: Mercury was a common, long-standing treatment for syphilis, and its use as such has been suggested to date back to The Canon of Medicine (1025) by the Persian physician Ibn Sina (Avicenna); although this is only possible if syphilis existed in the Old World prior to Columbus (see § Origin).
text: Another explanation is that syphilis was always present in the Old World but was not identified as a separate disease from leprosy before about A.D. 1500.