Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Passage: N'afọ 1986, ndị enyi Billie Joe Armstrong na Mike Dirnt, dị afọ iri na anọ n'oge ahụ, hiwere otu egwu akpọrọ Sweet Children. Egwuregwu mbụ nke otu ahụ mere na October 17, 1987, na Rod's Hickory Pit na Vallejo, California. Na 1988, Armstrong na Dirnt malitere ịrụ ọrụ na onye bụbu Isocracy drummer John Kiffmeyer, nke a makwaara dị ka "Al Sobrante". Armstrong na-ekwu na ìgwè Operation Ivy (nke gosipụtara Tim Armstrong na Matt Freeman nke Rancid) dị ka nnukwu mmetụta, na otu ìgwè nke kpaliri ya ịmalite otu ìgwè. N'afọ 1988, Larry Livermore, onye nwe Lookout! Records, hụrụ ka ndị otu ahụ na-eme ihe nkiri n'oge na-adịghị anya ma bịanye aka na otu ahụ na akara ya. N'afọ 1989, ndị otu ahụ dekọtara egwuregwu mbụ ha, 1,000 Hours. Tupu a tọhapụ 1,000 Hours, ìgwè ahụ kwụsịrị aha Sweet Children; dị ka Livermore si kwuo, emere nke a iji zere ọgba aghara na otu ìgwè ọzọ dị na mpaghara Sweet Baby. Ndi otu a jiri aha Green Day, n'ihi na ndi otu ha nwere mmasị na cannabis.Lookout! weputara Green Day album studio nke mbụ, 39/Smooth na mbido 1990. Green Day dekọtara ihe nkiri abụọ ka emechara n'afọ ahụ, Slappy na Sweet Children, nke ikpeazụ nke gụnyere abụ ochie nke ndị otu ahụ dekọtara maka akara ndekọ onwe ha nke Minneapolis Skene! Ihe ndekọ. N'afọ 1991, Lookout! Records weputara 39/Smooth n'okpuru aha 1,039/Smoothed Out Slappy Hours, ma gbakwunye egwu sitere na EP abụọ mbụ nke ìgwè ahụ, Slappy, na 1,000 Hours. Na ngwụcha afọ 1990, obere oge ka njem mbụ nke mba ahụ gasịrị, Kiffmeyer hapụrụ mpaghara East Bay iji gaa Humboldt State University na Arcata, California. The Lookouts drummer Tré Cool malitere ijupụta dị ka onye na-anọchi anya nwa oge na mgbe e mesịrị, ọnọdụ Cool dị ka onye na-egwu egwu Green Day ghọrọ nke na-adịgide adịgide, nke Kiffmeyer "ji obi ọma nabata". Ndị otu ahụ gara njem nlegharị anya maka ọtụtụ 1992 na 1993, ma kpọọ ọtụtụ ihe ngosi na mba ofesi na Europe. Egwú studio nke abụọ nke ìgwè ahụ bụ Kerplunk rere 50,000 na US.  Ajụjụ: Ebee na mgbe ka òtù egwú bụ́ Sweet Children mere egwú ndụ mbụ ha?
October 17, 1987, na Rod's Hickory Pit