RSS Bot@lemmy.bestiver.seMB to Hacker News@lemmy.bestiver.seEnglish · 4 months agoHumans 40k yrs ago developed a system of conventional signswww.pnas.orgexternal-linkmessage-square1linkfedilinkarrow-up110arrow-down10file-text
arrow-up110arrow-down1external-linkHumans 40k yrs ago developed a system of conventional signswww.pnas.orgRSS Bot@lemmy.bestiver.seMB to Hacker News@lemmy.bestiver.seEnglish · 4 months agomessage-square1linkfedilinkfile-text
…40k?