This document discusses theories around how and when human language emerged. It notes that there is disagreement among scholars on key questions like what constitutes "having" language, whether language is learned or acquired, and whether it developed gradually or all at once in human evolution. The document also outlines various fanciful historical theories proposed by philosophers and linguists around how language may have originated through actions like imitating animal calls, expressing emotions, or noticing unique sounds made by objects. One view presented is that language is hardwired into the human brain at birth through an innate "core grammar."