![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiLlMeshg0V_OmqRF7QHElfdrepbMAKkPgm2QPf5sttY6QGsyd1p51-Bg19KpjJN630x7XhPKPOjG7sJAPEjr_ZLFaBwgfrcS9-VoMucNTIo5zgZBrFShdj7EOUlnzC0xOp3PljZWFo_rk/s400/30.jpg)
An artificial rainbow from Pisa, Italy from the previous week.
[...] This year was the first day of Pentecost on the nones of June; and on the Tuesday following were seen four circles at mid-day about the sun, of a white hue, each described under the other as if they were measured. All that saw it wondered; for they never remembered such before. (The Peterborough Chronicle, 1104 A.D.)