 Nyora kupfuurira kweiyi ndima - Helsinki yakavambwa naMambo weSweden Gustav I muna 1550 seguta reHelsingfors. Gustav aida kuti guta racho rive nechinangwa chekusimbisa kutengeserana kumaodzanyemba kweFinland uye kupa mukwikwidzi kuReval nhasi: Tallinn, guta riri pedyo reHanseatic League iro raitonga kutengeserana kwemuno panguva iyoyo. Kuti ave nechokwadi chokuti guta racho raizoramba riripo mune zvoupfumi, mambo akarayira vagari vemamwe maguta akawanda kuti vatamire kuHelsingfors, asi murayiro wacho hauna kubudirira. Kuwanikwa kweEstonia kuchamhembe kwakadziva kumabvazuva neSweden, kusanganisira Reval, muna 1561 panguva yeHondo yeLivoniakwakakonzera korona yeSweden kurasikirwa nefariro mukuvaka mukwikwidzi kuna Reval, uye Helsingfors yakanyangarika semusha wakanganwika kwemakumi emakore pashure pacho. 