daydrinkingchickadee@lemmy.ml to Memes@lemmy.ml · 4 days agoSoonlemmy.mlimagemessage-square65fedilinkarrow-up1706arrow-down151
arrow-up1655arrow-down1imageSoonlemmy.mldaydrinkingchickadee@lemmy.ml to Memes@lemmy.ml · 4 days agomessage-square65fedilink
minus-squaredaydrinkingchickadee@lemmy.mlOPlinkfedilinkarrow-up3arrow-down6·3 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.