Historiography is a real word. It means the history of history. Seriously! One of the things we learn from historiography is that people's views of the past change as the times change. Because our perspectives change. Because we discover new information. Historians have been arguing back and forth about Richard III's back for generations. Then his skeleton was discovered and we learned he had scoliosis.
New information about the "war to end wars" means new views on the history of WWI That's how history is made.