European-Identity Insight: All of Indo-European had the Same One Supreme God.

All of these 8 branches of Indo-European languages, etymologically, reference the same oldest supreme chief, "heaven/sky-father", god/deva/dewos/theosthe same proto-IE root stem word meaning "to shine" (day/deity, wikipedia.org/wiki/Dyeus):
Dag-da "day/shining-divinity" (Celtic) | Týr father  (Teutonic) | Ju-piter (Latin) | Zeû[s] Pater (Hellenic) | Deivos, later called Rod (Slavic) | Dievas (Baltic) |  Tiwaz (Anatolian | "Dyeus Pita" (Vedic Sanskrit).
...All these names are dialectical variants of the same word.
Or, as the later, Iron Age, Julian the Apostate, the last non-Christian emperor of the Roman Empire (Constantinople), writing on Jupiter allegorically wrote, "...the Sun is the parent of us all... ...[like] 'The One,'... ...the light of the Sun bears the same relation to things visible as Truth does to things intelligible. ...this Whole... ... ...One indeed is the Creator of all things... ... ...the source... ... ...soul... ... ...the 'Invincible Sun,'..." (tertullian.org/fathers/julian_apostate_1_sun.htm

In the native religion of Baltic Latvia, the word "faith" means tree (as does the same root, "druid"); their ancient symbol is Austras Koks "sun-tree" (and their other symbol is a snake-headed many-ray sun swastika). Akin to the Irminsul/Yggdrasil (Teutonic); and Kalpavriksha (Sanskrit) tree-of-life/"world tree".

Dharma (Sanskrit), darna (Baltic), and harmony (Latin)all 3 come from the same root word (ar-) meaning "to fit together" ("reconciliation of opposites"). 

Karma from root kwer means to do (Sanskrit), wyrd from root wert means to turn or rotate (Teutonic), dán (Celtic), and the Fates/Moreia from root bha means voice (Hellenic).

(Separately, the thunder god is Thor (Teutonic) | Perun (Slavic) | Perkūnas (Baltic) | Indra (Sanskrit).)

...proverb: "Absence of evidence is not evidence of absence."