daydrinkingchickadee@lemmy.ml to Memes@lemmy.ml · 3 days agoSoonlemmy.mlexternal-linkmessage-square95fedilinkarrow-up1821arrow-down155
arrow-up1766arrow-down1external-linkSoonlemmy.mldaydrinkingchickadee@lemmy.ml to Memes@lemmy.ml · 3 days agomessage-square95fedilink
minus-squaredaydrinkingchickadee@lemmy.mlOPlinkfedilinkarrow-up4arrow-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.