William James Sidis (1898 - 1944)

William James Sidis (April 1, 1898 – July 17, 1944) was an American child prodigy with exceptional mathematical and linguistic skills who was active as a mathematician, linguist, historian, and author (whose works were published covertly due to never using his real name). He wrote about cosmology, Native American history, and rail transportation, and invented a language called Vendergood.