📅 1 September 1859
Carrington observed bright white patches near a sunspot during his regular solar observations.
📅 1 September 1859
Richard Hodgson independently observed the unusual white-light flare.
📅 1 September 1859
The 1 September observations are among the first recorded sightings of a solar flare.
📅 1 September 1859
A powerful geomagnetic storm followed; the sequence later helped develop the study of space weather.
