Zerush@lemmy.ml to Science Memes@mander.xyzEnglish · 4 months agoUS educationimagemessage-square377linkfedilinkarrow-up11.24Karrow-down134cross-posted to: science@hexbear.net
arrow-up11.21Karrow-down1imageUS educationZerush@lemmy.ml to Science Memes@mander.xyzEnglish · 4 months agomessage-square377linkfedilinkcross-posted to: science@hexbear.net
minus-squareTrainguyrom@reddthat.comlinkfedilinkEnglisharrow-up8·4 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)