The book presents an analysis of selected domains of morphosyntactic variation in a 250,000 word collection of the Middle English Paston Letters (1421-1503) from a historical sociolinguistic point of view. In the three case studies, two nominal and one verbal variable are described and discussed in detail: the replacement of Old English h-> pronouns by borrowed th-> pronouns, the introduction and spread of the wh-> relativizers, and the spread...