Cov ntawv nplaum, tseem hu ua Post-it Notes, tau tsim los ntawm ob tus kws tshawb fawb ntawm 3M, Spencer Silver thiab Art Fry.
Xyoo 1968, Spencer Silver, tus kws kho mob ntawm 3M, tau sim tsim cov nplaum nplaum zoo heev rau kev lag luam aerospace. Hloov chaw, nws yuam kev tsim "tsawg-tack", rov siv tau, siab-rhiab nplaum nplaum. Txawm hais tias nws siv zog los txhawb qhov "kev daws teeb meem tsis muaj teeb meem" hauv 3M, nws ua tsis tau raws li cov neeg koom nrog rau tsib xyoos.
Xyoo 1974, Art Fry, ib tug npoj yaig uas tau mus koom ib qho ntawm Silver's seminars, tau los nrog lub tswv yim ntawm kev siv cov nplaum los thauj nws cov ntawv sau rau hauv nws phau ntawv hu nkauj. Fry tom qab ntawd siv 3M's sanctioned "tso cai bootlegging" txoj cai, uas tso cai rau cov neeg ua haujlwm siv qee lub sijhawm ua haujlwm rau cov haujlwm ntawm lawv tus kheej xaiv, tsim lub tswv yim.
Cov ntawv sau thawj 'cov xim daj canary tau xaiv los ntawm lub sijhawm, los ntawm cov xim ntawm cov ntawv seem uas muaj nyob rau ntawm qhov chaw kuaj mob tom ntej mus rau Pab Pawg Post-it. Fry muab 3M cov neeg ua haujlwm nrog tus qauv ntawm cov khoom, thiab cov tib neeg pib sib pauv lus, qhia txog cov khoom lag luam kev sib txuas lus.
3M kev sim ua lag luam cov khoom lag luam raws li "Xovxwm 'n Peel" hauv khw muag khoom hauv plaub lub nroog hauv xyoo 1977, tab sis cov txiaj ntsig tau poob siab. Ib xyoos tom qab, 3M tau tshaj tawm kev lag luam loj heev hu ua Boise Blitz.
Niaj hnub no, Post-it Notes tau siv thoob ntiaj teb rau ntau lub hom phiaj, los ntawm kev tawm cov lus luv luv rau kev npaj cov kev xav thiab cov tswv yim.
