Assertion: smoker's smoking | /r/AtLocation | sub-saharan africa
Facets:
value: in earlier
type: TEMPORAL
value: through the east african coast
type: LOCATION
value: in the 13th century
type: TEMPORAL
value: by either indian or arab traders
type: OTHER
value: through ethiopia
type: LOCATION
Source sentences:
text: Cannabis smoking was introduced to Sub-Saharan Africa through Ethiopia and the east African coast by either Indian or Arab traders in the 13th century or earlier and spread on the same trade routes as those that carried coffee, which originated in the highlands of Ethiopia.