daydrinkingchickadee@lemmy.ml to Memes@lemmy.ml · 8 days agoSoonlemmy.mlimagemessage-square87linkfedilinkarrow-up180arrow-down13
arrow-up177arrow-down1imageSoonlemmy.mldaydrinkingchickadee@lemmy.ml to Memes@lemmy.ml · 8 days agomessage-square87linkfedilink
minus-squaredaydrinkingchickadee@lemmy.mlOPlinkfedilinkarrow-up0arrow-down1·7 days 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.