📅 29 May 1919
Observers at Sobral and Príncipe took eclipse images to test a prediction of general relativity.
📅 29 May 1919
The Brazilian observing site recorded stars whose apparent positions could be compared with earlier images.
📅 29 May 1919
Observations from the West African island provided an independent route to the same scientific test.
📅 29 May 1919
With the Sun obscured, stars close to its edge became visible; interpretation of the plates came afterward.
