Sunset afterglows at Lima, December 1808
Jose Hipolito Unanue, physician, recorded afterglows at the same time as the Bogota haze, showing the cloud straddled the equator.
How it connects
This clue from people is a clue for
1808 mystery eruption
This clue from people we read it in
Guevara-Murua et al. 2014, Observations of a stratospheric aerosol veil from a tropical volcanic eruption in December 1808, Climate of the Past