Events of disruption (red), formation (blue), and escape (orange) for all binaries as a function of time (a), distributions of semimajor axis (b), and eccentricity (c) for the set N15k_10hb_40sb from Table 1. The age axis in (a) is logarithmic; early-time bins span much shorter intervals than those at later ages. Panel (d) shows the evolution of actual separation (orange) and semimajor axis (blue) as a function of time for a specific case of very wide binary with chaotic evolution or highly perturbed by stellar encounters. Temporary disruption and formation events during the evolution of wide binaries of this type were excluded from (a), (b), and (c).