Sunday Stamps | Archdruid

Today's theme in Sunday Stamps is Yellow. I was looking for other stamps when I bumped into this one:

Stamp from 1976 that belongs to a 4-stamps set about British Cultural Traditions. It features the Eisteddfod Genedlaethol Frenhinol Cymru or Royal National Eisteddfod of Wales: the most important festival held annually in wales. Its eight days of competitions and performances are considered the largest music and poetry festival in Europe. The Archdruid presides over the most important ceremonies at the festival.

The Ammgueddfa Cymru or National Museum of Wales says:

Although the history of the Eisteddfod may traced back to a bardic competition held by the Lord Rhys in Cardigan Castle in 1176, the roots of the modern National Eisteddfod as we know it today lie in the latter part of the 18th century.