Opium

https://www.wikidata.org/wiki/Q46452

Field Hierarchy

Parent
Political science 24.5M papers	Law 14.1M papers	Geography 13.2M papers	History 8M papers
Archaeology 6.9M papers
Current
Opium 6,824 papers
Child
Opium Poppy 1,110 papers

Trends

Notes

History