Most of the words I see originate from Latin and Greek. I suppose that is because they are the oldest languages and everything was derived from those two. But how did Latin and Greek come up. How did we form the language in the very beginning? Who decided the words, the grammar, the spelling etc? I have been curious about this question. Sorry if this is a very common question in linguistic, I thought this would be the quickest place to get the answers compared to any other resources. Thank You!