There are all kinds of histories, each sees part of the world, but only part. To the degree that it touches upon you, then it's part of you, you own some small part in that story.
African-American History no doubt has a much huger part of gennee's life then mine, and I would never for a second doubt that her 'ownership' of it is far greater than mine. Still, it's impacted my life in several ways, so there is small part of me in that, and it's mine also to that small degree.
Which history is yours? All of them.