This course is a hands-on exploration of language typology. Each student will work with a different endangered language to help us, as a class, answer typological questions across various domains of language (sounds, words, sentences, etc.). Along what lines do languages vary? How much can languages differ from each other? Are any linguistic properties shared across all human languages, and if so, how do we explain them? How do signed languages fit into this picture, and what’s all that buzz about Pirahã? Through answering these questions, we will build up and engage with various models and theories of language variation.