On Android reader app we can navigate through article fragments in different manner. We can go through each lines seeing different stories, or we can move vertically to see how single period or situation looked from different perspectives.
So for example we may read part of the story of Keyan inventor developing his company, and jump to corresponding point at second line to see how political situation looked at that period. In the end two, three or 4 stories can interlace and influence each other.
This way we can discover many faces of a one place and try to better understand it !