Marcator's projection map of the world.
this idea it's simply to create a map that is the union of several maps from different historic periods.
beyond the human boundaries that change constantly, the world always remains the same.
so here you are the anachronistic map of the world.
maybe the final output is not that beautiful, but it's just to show you the idea. I think the final map could be aesthetically wonderful. just spend a little bit of time on it!