A big part of first language acquisition, occurring around 28-36 months, is the creation of taxonomies within language and placing the self within these taxonomies. The child gradually sees itself as being part of sex differences (man-woman-boy-girl), family (father-mother-brother-sister) and the world around. The point is, however, these taxonomies are created through language – language and consciousness coevolve, in a Vygotskian sense. With second language learning, on the other hand, these taxonomies are already preexisting. The taxonomies are then described through language.