"I don’t know if you were born or were alive in 1973, but I was, and as far as I know, a stadium did not drop on the White House," Kinberg said, laughing. "All human history has changed after Days of Future Past, not just whether Jean or Scott lived or died. What that gives us, which is great fun, is we can also mess around with human history. We aren’t beholden to everything that happens in future X-Men movies being secret, because if you were to hold to the original X-Men movies, at the beginning of X-1, it’s really the first conversations about mutants in the world. But if in 1973 a stadium fell on the White House or in the 1980’s there was an apocalyptic event, conversations would have started much earlier."