I'm just jumping in on someone else's thread with my comment about Nacirema; those other points are made by other people.

'However, using the word "history" in a way different to historians is not going to uncover any blind spots.'

Yes it does. There are non-written, non-durable sources that would suggest a different story. A great example is the story of the Seven Sisters. Among oral traditions collected from around the world in different cultures, that story has remarkably high degree of agreement across variants of that story -- probably owing to the one of the Pleiades growing too dim to see with the naked eye, and witnessed around the world.

Even written sources can be overlooked because of narrative biases. I grew up with an Euro-centric world history only to find out that lands connected by the Silk Roads had a much longer history as the center of the old world.