entity_id,period_id,confidence,rationale,source_id,review_status
ENT_NORR_BIFROST,PER_NOR_VIKING,high,"The burning rainbow bridge (Bilröst/Bifröst) joining Midgard and Asgard, guarded by Heimdall, destined to break under the Múspell host at Ragnarök. Gylfaginning. Modeled as a locale within the realm set.",SRC_PROSE_EDDA,reviewed