I had an idea for a method of world-building that involves the audience essentially seeing various points in history through the point of view of a different protagonist, the role which the protagonist plays in history is extremely varied ranging from being the cause of a metaphorically Earth-shattering event to the protagonist merely being a victim of circumstance and striving to get by in the world he/she is placed in, with some small elements interconnecting with one another so that not only can the audience see how history has effected the present directly, but so that contradictions in what the audience knows and what the future books "say," however subtle or blatant it is, can act perhaps as a form of foreshadowing. I intent to show the passing of time in the world from various culture's view points from the "beginning" to what is essentially the "end," with revelations to mysteries presented to one character being later discovered by someone else perhaps hundreds or thousands of years later. Essentially the point is that there are two periods during which the planet was coated in ice and snow -- an ice age. During the interval of time between the two, there was the advent of mankind's primal ancestors. Thrown into the all-too-soon succeeding ice age, as humanity's numbers began to dwindle, they were forced to adapt to the situation by eventually being propelled into humanity's first era of self-awareness and true cognizance, somewhat inspired by the era of Enlightenment in our history. Combating the ice age with reason and logical response, learning from experience, trial and error and frantic efforts, rather than the sheer force of will, humanity was able to stall their extinction long enough to survive through the period of ice. Even after this epochal cold ended, though, the pursuit of knowledge, culture and individuality only intensified, with more people turning to pursue physical passions and those preferring intellect pursue more fervently further understanding. From hence forth, the series plot will take place. However: Is it possible for a mystery to span over an era or two? And what could one do to make the plots interconnected, if even only faintly? Would this even help world-building? How would presentations of contradictions work so the audience doesn't automatically assume it was a mistake on my part? Would a character discovering the answer to a mystery that he doesn't know as much as the audience even make sense, and would some people be turned off by having to make the connections to the mysteries themselves if the answers are more subtle than per the norm?