Buzz
The brain area dedicated to mathematical and spatial reasoning - the inferior parietal lobule, is also larger than average. If you want to see Einstein's brain, you can visit the Mütter Museum in Philadelphia, Pennsylvania, USA.
Rene Descartes
Rene Descartes, a French philosopher, is famous for the statement 'I think, therefore I am'. He had a profound influence on philosophy to the extent that his works are considered the dawn of the modern era. In mathematics, Descartes invented the Cartesian plane, allowing the representation of algebraic ideas through geometry. The genius passed away at the age of 50 in 1650 due to pneumonia in Sweden, where he was teaching philosophy to Queen Christina.
Descartes' brain has long been gone. However, recent scientists have studied the shape of his skull to find clues about how his brain might have differed from the average person. Using CT imaging, scientists have found that Descartes' skull is quite normal in size, except for a bulge in the frontal lobe region related to the part of the brain responsible for abstract thinking and generating concepts.
Carl Friedrich Gauss
Carl Friedrich Gauss (1777 - 1855) was a German mathematician and physicist. Gauss's brain was studied after his death by the renowned neuroscientist Rudolf Wagner. His brain was found to be heavier than average and had very notable folds throughout, considered as the 'source of Gauss's intelligence'.
Previously, this brain had inadvertently been swapped with the brain of Dr. Conrad Heinrich Fuchs, who passed away the same year and was mislabeled for over 150 years. This error was only discovered when MRI studies of both brains revealed significant differences compared to the brain drawing by Rudolf Wagner.
Vladimir Lenin
Lenin - the great leader had his brain immediately dissected by doctors upon passing under the orders of Joseph Stalin in order to prove Lenin's genius. His brain was preserved for several years and later studied by Dr. Oskar Vogt, a German neurologist, at the request of the Russian government.
Upon comparing Lenin's brain with that of a 'normal person' and several writers, it was evident that Lenin was an undisputed genius with a brain featuring giant pyramid-shaped cells, believed to account for Lenin's revolutionary oratory skills. It was even noted how well-organized and unharmed his brain was, despite him suffering four strokes.
Source: Big Think
