Backpack

https://www.wikidata.org/wiki/Q5843

Field Hierarchy

Parent
Engineering 25.7M papers	Political science 25M papers	Law 14.4M papers	Geography 13.4M papers
History 8.1M papers	Archaeology 7M papers	Structural engineering 2.7M papers
Current
Backpack 2,476 papers
Child
Solar backpack 0 papers

Trends

Notes

History