Continuing what I briefly mentioned in @ammo8121's Education without schools thread, here's the education graph in a city tile with one elementary school, one library, and one museum with enough health care coverage that the average life span is about 89 years: (Edit: Oops this pic is after I started adding more schools. It was one of each up till about halfway thru that graph.)   I decided to do a more in depth experiment. Here's the sleepy little town of H-2 where the life span is about 91 years:   The whole town was developed in the first two years and I built one single City Museum then. No other educational facilities at this time. Here's the EQ graph after 75 years:   Education by age in year 75:   As all of the older generation reincarnates into younger Sims the average EQ begins to plumment in year 78:   Let the game run until year 112 and we've cycled into a new older generation. EQ is back above 160:   Let it run till year 178 and we've been thru another decline and peaked again:   Education by age shows only the elders are educated:   We're good until year 198 when the EQ plummets again:   At this point I built two Local Branch Libraries that cover the whole town:   The high plateau is slightly less than with the museum only in year 257:   At the end of the 2nd plateau (which is higher than the prior one) I built two Elementary Schools covering the town:   Let it run till year 360 and the EQ is roughly 170:   In year 378 I added a High School:   By year 423 we see EQ is about 195:   In this next graph there was the dip while the population regenerated, but it recovered quickly. At year 475 I built a City College:   At 500 years we've nearly achieved an average EQ of 200:   By year 505 all age groups are as maxed as I believe they can go:   So, to me, the most interesting part is that one can get slightly above 160 EQ with a single museum and good health coverage. In other tests I spread out the population so only a few Sims were reincarnating per year and that smoothed out the peaks and valleys in the EQ graph. 195 EQ is achievable without ever building a City College or University if that fits one's story line. Not that anyone will use this method, but it's fun for me inasmuch as I can achieve I-HT demand with one single educational facility (the museum) if I want to.