LCP@lemmy.world to Videos@lemmy.world · 8 months agoThe Pen That Changed The World - BIC Cristalyoutu.beexternal-linkmessage-square3fedilinkarrow-up133arrow-down12cross-posted to: engineeringporn@lemmit.onlinevideos@lemmy.world
arrow-up131arrow-down1external-linkThe Pen That Changed The World - BIC Cristalyoutu.beLCP@lemmy.world to Videos@lemmy.world · 8 months agomessage-square3fedilinkcross-posted to: engineeringporn@lemmit.onlinevideos@lemmy.world
minus-squareddonuts4@lemmy.worldlinkfedilinkarrow-up2·8 months agoDid these really improve literacy rates? I thought pencils existed for a long time before them.
Did these really improve literacy rates? I thought pencils existed for a long time before them.