daydrinkingchickadee@lemmy.ml to Memes@lemmy.ml · 3 months agoSoonlemmy.mlimagemessage-square102linkfedilinkarrow-up1832arrow-down158
arrow-up1774arrow-down1imageSoonlemmy.mldaydrinkingchickadee@lemmy.ml to Memes@lemmy.ml · 3 months agomessage-square102linkfedilink
minus-squaredaydrinkingchickadee@lemmy.mlOPlinkfedilinkarrow-up4arrow-down7·3 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.