You're asking a loaded question from the start.I'll ask the question again..... whose version of history should we take seriously? Especially in regards to the history of black Americans prior to their arrival in the Americas..... Can you lend some examples?
We should take the global historical consensus for history.
You make it sound like its an "all White people" version of history and an "all Black people" version of history. In reality there are thousands of historians, different interpretations, and different ways of recording history (event based, context based, etc).
When it comes to oft-ignored issues in the US for instance, I definitely take Howard Zinn's historical accounts along with tens of others into account.