What is To Be Done? In Literary and Historical Context

In the next few posts I intend to discuss the literary and historical context of Chernyshevsky's "What is to Be Done?" In order to do so I felt it handy to create the diagram below as a point of reference. I may - likely - will add to it, but first want to discuss each individual connection, starting with the relationship to Turgenev's Fathers and Sons. I find this relevant to the general understanding of the Russian Revolution, its relationship to some great works of Russian literature, as well as the various philosophical strains that evolved from the fundamental question it poses.

Without further ado, here's the chart (note I've avoided for a moment the progeny of Dostoyevsky because it gets too complicated too quickly. But I will discuss shortly - I'm sure you can't wait):