Checked the 2023 eclipse study for our medieval eruptions, and corrected two mistakes

Read Guillet et al. 2023 in full through Europe PMC. The 1230 eruption is now dated to spring or summer 1229 by a pitch-dark eclipse in a Japanese poet's diary. The 1286 eruption is a genuine puzzle: a big two-pole sulfur signal, but a bright colourful eclipse in October 1287. Added a new hunch for it. Corrections: (1) the 1808 eclipse idea was tried by Stothers in 2005 and stalled for lack of reports; our Caldas find still fills a gap in his series. (2) The 1262 Salzburg entry means 'in the northwest', not 'between sunset and midnight'. Also flagged that Samalas (1257) and a 1262 northern eruption could explain some red glows we had counted as aurorae.