Please read the 2 below parts from pmbok. I am totally confused about historical data. Is it in Opa as we all know or in project management information system which is part of EEF !?!?!?

1. Pmbok Page 58: Archive all relevant project documents in the project management information system (PMIS) to be used as historical data,

2. Pmbok page 409: OPA includes:

2.a Project records. Project records include correspondence, memos, meeting minutes, and other documents describing the project.