Folio 309r of the Book of Kells (Trinity College Dublin), c. 800.
Key myth
At Tara, the doorkeeper turns him away until he lists every craft he practises, and he becomes leader of the gods against the Fomorians. The festival of Lughnasadh is named for him.
Where sources differ or caution applies. The sun-god reading is a modern interpretation.
Deities in other traditions who share a theme with Lugh: craft, smiths and making, sky, storm and thunder, war and fighting, the sun and light. This is overlap in one area only.