Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Pakazosvika 1975, nyika dzakawanda kwazvo dzakanga dzichishandisa gadziriro yeGermany zvokuti yakagadzwa kuva mwero weISO, pamwe chete nomutoo wepamutemo wegwaro reSangano Romubatanidzwa Wenyika Dzapasi Pose. Pakazosvika 1977, A4 ndiyo yakanga yava manyorerwo etsamba munyika 88 pa148 dziripo. Nhasi mwero wacho watambirwa nenyika dzose munyika kunze kweUnited States neCanada. MuMexico, Costa Rica, Colombia, Venezuela, Chile, uye Philippines, chimiro chetsamba yeUS ichiri kushandiswa zvakajairika, kunyangwe ivo vakagamuchira zviri pamutemo chiyero che ISO.  Mubvunzo: ndedzipi nyika dzisina kutevera mwero wacho?
United States neCanada