Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: A cikin 1986, abokai Billie Joe Armstrong da Mike Dirnt, waɗanda ke da shekaru 14 a lokacin, sun kafa ƙungiyar da ake kira Sweet Children. Wasan farko na rukunin ya faru ne a ranar 17 ga Oktoba, 1987, a Rod's Hickory Pit a Vallejo, California. A cikin 1988, Armstrong da Dirnt sun fara aiki tare da tsohon Isocracy drummer John Kiffmeyer, wanda aka fi sani da "Al Sobrante". Armstrong ya ambaci ƙungiyar Operation Ivy (wanda ya nuna Tim Armstrong da Matt Freeman na Rancid) a matsayin babban tasiri, da kuma ƙungiyar da ta sa shi ya kafa ƙungiya.A 1988, Larry Livermore, mai mallakar Lookout! Records, ya ga ƙungiyar ta buga wasan kwaikwayo da wuri kuma ya sanya hannu kan rukuni zuwa lakabinsa. A cikin 1989, ƙungiyar ta yi rikodin wasan da aka fara, 1,000 Hours. Kafin a fitar da 1,000 Hours, kungiyar ta yi watsi da sunan Sweet Children; a cewar Livermore, an yi hakan ne don kauce wa rikicewa da wani rukunin gida mai suna Sweet Baby. Kungiyar ta dauki sunan Green Day, saboda sha'awar mambobin kungiyar ga wiwi. Lookout! ya fitar da kundi na farko na Green Day, 39/Smooth a farkon 1990. Green Day ya yi rikodin wasanni biyu da aka yi a baya a wannan shekarar, Slappy da Sweet Children, wanda na biyun ya haɗa da tsofaffin waƙoƙin da ƙungiyar ta yi waƙoƙi don alamar rikodin Skene mai zaman kanta ta Minneapolis! Bayanai. A shekara ta 1991, Lookout! Records sake sake 39/Smooth karkashin sunan 1,039/Smoothed Out Slappy Hours, da kuma kara da songs daga band ta farko biyu EPs, Slappy, da kuma 1,000 Hours. A ƙarshen 1990, jim kaɗan bayan yawon shakatawa na farko na ƙungiyar a duk ƙasar, Kiffmeyer ya bar yankin East Bay don halartar Jami'ar Jihar Humboldt a Arcata, California. The Lookouts drummer Tré Cool ya fara cikawa a matsayin maye gurbin wucin gadi kuma daga baya matsayin Cool a matsayin drummer na Green Day ya zama na dindindin, wanda Kiffmeyer "ya karɓa da alheri". Kungiyar ta tafi yawon shakatawa don mafi yawan 1992 da 1993, kuma sun buga wasanni da yawa a kasashen waje a Turai. Kundin faifai na biyu na Kerplunk ya sayar da kwafi 50,000 a Amurka.  Tambaya: Wanene mai buga kwallo?
Mai Kyau