Quote Originally Posted by Blowboy
Russian actually originated from two greek missionaries that wanted to spread orthodox catholicism around Russia, and because they needed a language that everyone could understand, they developed russian and the cyrilic alphabet (one of those dudes was called cyrilicus).(I learned this like two weeks ago) If you compare the greek and the russian alphabet, you'll notice a lot of simmilarities.
about PIE, ermitonto is correct, a lot of stems can be seen in many different languages.
No, that's not where Russian came from. That's where the Cyrillic alphabet came from, which wasn't even used to write Russian at first, but a language called Old Church Slavonic (and by the way, the guy's name was St. Cyril). But anyways, no language was "invented" when its writing system was invented. All writing systems developed to record spoken language. Old Church Slavonic existed for a long time before anybody figured out a way to turn it into marks on paper.