daydrinkingchickadee@lemmy.ml to Memes@lemmy.ml · 4 months agoSoonlemmy.mlimagemessage-square88linkfedilinkarrow-up183arrow-down14
arrow-up179arrow-down1imageSoonlemmy.mldaydrinkingchickadee@lemmy.ml to Memes@lemmy.ml · 4 months agomessage-square88linkfedilink
minus-squaredaydrinkingchickadee@lemmy.mlOPlinkfedilinkarrow-up0arrow-down1·4 months agoCliodynamics and Structural-Demographic Theory suggests cycles of 200-300 years as well.
Cliodynamics and Structural-Demographic Theory suggests cycles of 200-300 years as well.