This book of new work by leading international scholars considers developments in the study of diachronic linguistics and linguistic theory, including those concerned with the very definition of language change in the biolinguistic framework, parametric change in a minimalist conception of grammar, the tension between the observed gradual nature of language change and the binary nature of parameters, and whether syntactic change can be triggered internally or requires the external stimuli produced by phonological or morphological change or through language contact.

Do bi- and multilinguals perceive themselves differently in their respective languages? Do they experience different emotions? How do they express emotions and do they have a favourite language for emotional expression? How are emotion words and concepts represented in the bi- and multilingual lexicons?

The study describes a detailed and original piece of research work, investigating a very important genre of human communication, and that is conversation. It provides a definition of the genre of conversation by describing nine features of conversation, namely multiple sources, discourse coherence, language as doing, co-operation, unfolding, open-endedness, artifacts, inexplicitness and shared responsibility. These nine features of naturalness in conversation serve to distinguish conversation from specialized discourse types.

Written Reliquaries: The resonance of orality in medieval English texts establishes the linguistic component of orality and oral tradition. The relics it examines are traces of spoken performance, artifacts of linguistic and cultural processes. Seven case studies animate verbal acts of making promises, quoting proverbs, pronouncing curses, speaking gibberish, praying Pater Nosters, invoking saints, and keeping silence. The study of their resonance is enabled by a methodological conjunction of historical pragmatics and oral theory.

This is the first historical investigation on the nonverbal component of conversation. In the courtly society of 16th and 17th century England, it is argued that a drift appeared toward an increased use of prosodic means of expression at the expense of gestural means. Direct evidence is provided by courtesy books and personal documents of the time, indirect evidence by developments in the English lexicon.