The pages of The Book of Kells certainly contain some of the elements that have been used to identify drug use in modern and contemporary art.
A detail of the incipit page with the first words of the Gospel of John: In principio erat Verbum, “in the beginning was the Word”.
The British Library
Archaeologists believed there was too little left from the time of the saint who Christianised the Scottish Picts to prove the legend. Turns out they were wrong.