1268 carbon-14 candidate
Second small rise proposed by Miyahara et al. 2022. Nothing found in Song or Yuan official histories.
How it connects
This mystery has this clue
Largest of the three 13th-century candidates, 1268 to 1269 (Miyahara 2022)
This mystery has this hunch or step
1268: we thought nobody saw it, but Korea did, and it is already published
This mystery has this clue
Red vapour in the west, Korea, 19 December 1268
This mystery has this clue
Krakow: an unusual cross-shaped brightness in the sky before dawn, 5 December 1269
This mystery has this clue
A white band about 3 degrees wide stretched across the night sky, Korea, 15 February 1269