19thcentury 19thcenturyamericanhistory 20thcentury 20thcenturyamericanhistory aerialoperations africanamericanarts africanamericanhistory africandiasporahistory american baseball biography business canadianliterature civilwar discriminationinsports emergencymedicine entertainment ethnic firefighting general government historicalbiography history japaneseamericanbaseballplayers labormovement laborstudies latinamericans latinos law middleatlanticregion military minoritystudies miscellaneous nativenorthamericanhistory nativenorthamericanpeoples newyorkcity northeastern plainstribes politics socialsciences unions unitedstates unitedstatesarmy unitedstateshistory unitedstatesmilitaryaviation unitedstatesstudies warnarratives workingclass worldwarii