Zerush@lemmy.ml to Science Memes@mander.xyzEnglish · edit-22 months agoUS educationlemmy.mlimagemessage-square373fedilinkarrow-up11.23Karrow-down134
arrow-up11.19Karrow-down1imageUS educationlemmy.mlZerush@lemmy.ml to Science Memes@mander.xyzEnglish · edit-22 months agomessage-square373fedilink
minus-squareTrainguyrom@reddthat.comlinkfedilinkEnglisharrow-up8·2 months ago1890 would also be about 30 years after the invention of the telephone and 2 years after the invention of the strowger switch (first automated telephone switch)
1890 would also be about 30 years after the invention of the telephone and 2 years after the invention of the strowger switch (first automated telephone switch)