information about Imperial unit system field
Field Hierarchy
| Parent | |||
|---|---|---|---|
Political science 25M papers | Law 14.4M papers | Geography 13.4M papers | History 8.1M papers |
Archaeology 7M papers | Politics 4.5M papers | Ancient history 1M papers | Colonialism 150k papers |
Empire 93.8k papers | |||
| Current | |||
Imperial unit system 698 papers | |||
| Child | |||
Trends
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History