Kaleva - The Ruler of Finns by FinnicHerald on DeviantArt
Who was Kaleva? Did he really exist? The name Kaleva is all over Finnic folk poetry. The Finnish-Karelian epic Kalevala (literally the Land of Kaleva) and the Estonian epic Kalevipoeg (Son of Kalev) contain the name Kalev(a). In mythology Kaleva much like his sons are considered either giants or kings. The characters from ancient oral folk poetry are mostly considered mythological but they may very well be based on real people.
Ukonvasara - Ukko's Hammer by FinnicHerald on DeviantArt
Ukonvasara - Ukko's Hammer - or Ukonkirves - Ukko's Axe - is the symbol and magical weapon of the Finnic thunder god. In Finnish mythology the thunder god is referred to with names Ukko, Äijä or Äijö and sometimes Ilmarinen. The Estonian parallel is Uku, Vanaisa - Grandfather - or Taevataat - Sky Father.