No founder, organizing body, or first observance has been documented for National Jesse Day. The day is genuinely kept on June 18, including by organizations marking it for people they know, but nothing traceable records who began it or why that date.
Glass that outlived the fire
Chartres Cathedral put its Jesse window into the west front around 1145. In 1194 a fire destroyed the cathedral standing around it. Four windows survived, and the Tree of Jesse was one of them.
The image traveled well. A workshop in Swabia made one late in the 1200s that now hangs in the Metropolitan Museum of Art, six stacked panels running nearly 13 feet from bottom to top. Jesse sleeps at the bottom, King David holds a harp in the roundel just above him, and the trunk climbs until it seems to merge with the wood of the cross.


