Refactor external history plugin
Refactor external history plugin

Masoumeh/arethusa,alpheios-project/arethusa,latin-language-toolkit/arethusa,fbaumgardt/arethusa,alpheios-project/arethusa,PonteIneptique/arethusa,latin-language-toolkit/arethusa,fbaumgardt/arethusa,fbaumgardt/arethusa,PonteIneptique/arethusa,alpheios-project/arethusa,Masoumeh/arethusa