daydrinkingchickadee@lemmy.ml to Memes@lemmy.ml · 2 days agoSoonlemmy.mlimagemessage-square75fedilinkarrow-up1771arrow-down153
arrow-up1718arrow-down1imageSoonlemmy.mldaydrinkingchickadee@lemmy.ml to Memes@lemmy.ml · 2 days agomessage-square75fedilink
minus-squaredaydrinkingchickadee@lemmy.mlOPlinkfedilinkarrow-up4arrow-down6·24 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.