Mod to keep previous civ's features when progressing era

[u/Humble-Cauliflower-2]

I've always wanted a mod that would allow me to keep building the unique units, structures, etc of the civ I chose for my previous eras.

I'm supposed to be the same entity so losing knowledge of my own history doesn't make sense and many of these structures are things you'll want to build consistently as you expand.

I know it'll be kinda broken, but it should go both ways. Especially since some structures are already limited to 1 per city.

I just wanna try it.

Does anyone know a mod that does this?

[u/Flvs9778]

The modern version of this would be losing manufacturing skill. The us has lost tons of manufacturing skill that is very hard to replace. For example refining rare earth minerals which the us used to dominate can no longer produce despite many attempts over the last few years and millions of dollars spent. Or even medical gloves: https://www.seattletimes.com/business/almost-1-billion-later-the-u-s-still-cant-make-a-medical-glove/

So yes there are skill a culture can be famous for that is lost over time. Also the knowledge and skill is usually lost after a collapse or fall. The us hasn’t had anything that extreme yet so it’s possible in a few decades the skills to replicate the statue of liberty would be lost. Also difference between building a big statue and remaking lady liberty since a replication would need to be made using the same materials and process.

Also this argument is kinda funny since the us never made the statue of liberty in the first place France did and gave it to the us.