daydrinkingchickadee@lemmy.ml to Memes@lemmy.ml · 10 months agoSoonlemmy.mlimagemessage-square101linkfedilinkarrow-up10arrow-down10
arrow-up10arrow-down1imageSoonlemmy.mldaydrinkingchickadee@lemmy.ml to Memes@lemmy.ml · 10 months agomessage-square101linkfedilink
minus-squaredaydrinkingchickadee@lemmy.mlOPlinkfedilinkarrow-up0·9 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.