Red vapour across the whole sky, then a red glow bright as day, Korea, 23 and 26 March 1278

Goryeosa volume 53: '四年二月壬午，赤氣竟天。三月乙酉，赤祲見于南方，夜明如晝', about 23 March 1278 (red vapour across the whole sky) and 26 March 1278 (odd red vapour in the south, the night as bright as day). Two strong glows three nights apart look like a major geomagnetic storm. Miyahara's tree shows a small rise into the 1278 ring (from -13.39 to -11.67 permil) that they attribute to the solar cycle; worth a note, not a claim. Also on about 27 April 1278 a white vapour stretched from east to west.