Most languages have naturally evolved as far back as we can track them through history, and beyond that we just don't know. As far as we know, most languages co

Most languages have naturally evolved as far back as we can track them through history, and beyond that we just don't know. As far as we know, most languages could just go back to one Ur-Tongue (sometimes called Proto-World). But some spoken languages are newer and we can prove that. The youngest language in the world is arguably the Nicaraguan Sign Language[1], from the early 1980s. The only possible progenitors are home sign systems the kids who developed it used at home, which were not full languages and were themselves quite new, so it's got a pretty strong claim. Beyond that you've got pidgins, creoles and mixed languages which develop by combining two or more languages. You can argue whether or not their entirely new, since they generally borrow vocabulary from one language and grammar from the another, or just mix several languages more freely together. [1] https://en.wikipedia.org/wiki/Nicaraguan_Sign_Language https://en.wikipedia.org/wiki/Nicaraguan_Sign_Language