All my heroes have feet of clay
https://www.quantamagazine.org/the-man-who-stole-infinity-20260225/ part of my ongoing series of disappointments.

The Man Who Stole Infinity | Quanta Magazine
In an 1874 paper, Georg Cantor proved that there are different sizes of infinity and changed math forever. A trove of newly unearthed letters shows that it was also an act of plagiarism.
Quanta Magazine