If you get interested in etymology, you'll see that each language encodes the history of who spoke it during the time it was forming and changing (which continues into the present). There's lots to be learned about history by studying languages.
One of my favorite examples is the word "sky". Sky comes from the old norse [1] for "cloud" or "obscured". Presumably when Old English developed on the British Isles, the sky was generally full of clouds. So when they needed a word for the thing above them, they seemingly borrowed the world for "cloudy" instead of "sunny". That probably wouldn't have happened if English developed somewhere with better weather.