Latin is a synthetic, fusional language in the terminology of linguistic typology. The syntactic typology remains independent of Arabic influence. From the perspective of linguistic typology, Thai can be considered to be an analytic language. The classification system should also meet the assumptions of a typology. Galen promoted this theory and the typology of human temperaments. Studies affirm a strong link between gesture typology and language development. Combining phrenology with typology and graphology, he coined a global approach known as psychognomy. It is also associated with notions of racial typology. In 1924 Paul Cherington developed the 'ABCD' household typology; the first socio-demographic segmentation tool. This has been described as one of the earliest exercises in archaeological typology. The universal nature of makes some immediate predictions about language typology. Another important typology of loneliness focuses on the time perspective. Their typology broadened the term's meaning. The typology uses five different categories. Oakeshott's pommel typology groups medieval pommel shapes into 24 categories (some with subtypes).