The city is known for being the place where the astronomical observation of a solar eclipse on May 29, 1919, by a team of British scientists led by Sir Frank Watson Dyson was offered as the first proof of Albert Einstein's theory of general relativity, which had been published in 1916. The town's ("Museum of the Eclipse") celebrates this event. There is a monument in Patrocínio Square marking the location of this solar eclipse. A planetarium was also inaugurated in 2015 next to this monument.