The first person to write about the square root of a negative number was Italian mathematician Girolamo Cardano, in 1545.
He would later state that thinking about it caused him "mental tortures"
Um, hey @britishmuseum, it's come to my attention that your exhibit "China's hidden century" uses my translations of Qiu Jin's poetry, but you never contacted me for permission. Please note this is a copyright infringement! How are you going to fix this?? #NameTheTranslator