Answer:
No. George Washington Carver did not invent peanut butter. The earliest reference to peanut butter being made goes all the way back to around 1000 BC where the Ancient Incas were known to have made a paste out of peanuts. Since then, peanut butter has been "invented" numerous times by various individuals throughout history. Although Carver didn't invent peanut butter, he did play a significant role in popularizing it and his 1880 "invention" of peanut butter preceded most of the other modern "inventors" of peanut butter.