daydrinkingchickadee@lemmy.ml to Memes@lemmy.ml · 2 days agoSoonlemmy.mlimagemessage-square75fedilinkarrow-up1768arrow-down154
arrow-up1714arrow-down1imageSoonlemmy.mldaydrinkingchickadee@lemmy.ml to Memes@lemmy.ml · 2 days agomessage-square75fedilink
minus-squaredaydrinkingchickadee@lemmy.mlOPlinkfedilinkarrow-up4arrow-down6·23 hours 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.