entity_id,source_id,evidence_type,source_note
ENT_FINN_UKKO,SRC_AGRICOLA_PRIMER,direct attestation,"Agricola 1551 Psalter prologue: Ukko listed first among the Häme deities — ""Ukko ruled weather and the air / and gave rain when summer was dry."" Earliest written attestation of Ukko by name."
ENT_FINN_UKKO,SRC_KALEVALA,direct attestation,"Kalevala Runo 2:323-328: ""Ukko, thou of gods the highest""; Runo 47: Ukko is called to restore the stolen sun and moon; pervasive invocations throughout as the highest divine authority."
ENT_FINN_UKKO,SRC_PENTIKÄINEN_KALEVALA,scholarly attestation,Pentikäinen (1999) pp. 121-140: Ukko as supreme thunder deity; cognate analysis with Baltic Perkūnas and Norse Thor; the rain-making and harvest-protection functions; decline of the cult under Christianization.