Biological warfare at the 1346 siege of Caffa. (1/5)

On the basis of a 14th-century account by the Genoese Gabriele de' Mussi, the Black Death is widely believed to have reached Europe from the Crimea as the result of a biological warfare attack. This is not only of great historical interest but also relevant to current efforts to evaluate the threat of military or terrorist use of biological weapons. Based on published translations of the de' Mussi manuscript, other 14th-century accounts of the Black Death, and secondary scholarly literature, I conclude that the claim that biological warfare was used at Caffa is plausible and provides the best explanation of the entry of plague into the city. This theory is consistent with the technology of the times and with contemporary notions of disease causation; however, the entry of plague into Europe from the Crimea likely occurred independent of this event.  (+info)

Views on sexuality in croatian medieval sources. (2/5)

We analyzed attitudes towards sexuality during the medieval period in Croatia. For that purpose we investigated numerous medical and literary texts, statutes, and specific natural philosophical work entitled "Lucidar". Contrary to medical books, which had a low impact on the broader community, literary texts were important in spreading messages on sexuality, as well as in shaping medieval mentality and creating sexual taboos. Consequently, a specific perspective and culture influenced rules and practices for community protection, as well as various levels of social systems. Within the three large groups of sources, we selected those typical both in their content (ideas) and forms, and representative in shaping attitudes toward sexuality on our territory. The first group of sources (examples from literary genres) were identified as an important vehicle in transferring messages of morality, moral obligation and sexuality in general. Deeply rooted in Christianity they became a pattern according to which the way of life and value were measured, a specific view toward sexuality was shaped, and notions of stigma and taboo articulated.  (+info)

Quantifying the evolutionary dynamics of language. (3/5)

Human language is based on grammatical rules. Cultural evolution allows these rules to change over time. Rules compete with each other: as new rules rise to prominence, old ones die away. To quantify the dynamics of language evolution, we studied the regularization of English verbs over the past 1,200 years. Although an elaborate system of productive conjugations existed in English's proto-Germanic ancestor, Modern English uses the dental suffix, '-ed', to signify past tense. Here we describe the emergence of this linguistic rule amidst the evolutionary decay of its exceptions, known to us as irregular verbs. We have generated a data set of verbs whose conjugations have been evolving for more than a millennium, tracking inflectional changes to 177 Old-English irregular verbs. Of these irregular verbs, 145 remained irregular in Middle English and 98 are still irregular today. We study how the rate of regularization depends on the frequency of word usage. The half-life of an irregular verb scales as the square root of its usage frequency: a verb that is 100 times less frequent regularizes 10 times as fast. Our study provides a quantitative analysis of the regularization process by which ancestral forms gradually yield to an emerging linguistic rule.  (+info)

A three-dimensional color space from the 13th century. (4/5)

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Social inequality and death as illustrated in late-medieval death dances. (5/5)

Late-medieval murals and books of the then-popular "dances of death" usually represented the living according to their social standing. These works of art thus provide an interesting opportunity to study the relationship between social inequality and death as it was perceived by the works' commissioners or executers. The social hierarchy in these dances of death is mostly based on the scheme of the three orders of the feudal society; variations relate to the inclusion of female characters, new occupations, and non-Christian characters. Many dances of death contain severe judgments on highplaced persons and thus seem to be expressions of a desire for greater social equality. However, a more thorough analysis reveals that the equality of all before death that these dances of death proclaimed held nothing for the poor but only threatened the rich. Because of a lack of reliable data, it is not yet completely clear whether during the late Middle Ages all were indeed equally at risk for premature mortality. Available evidence, however, suggests that the clergy and nobility actually had a higher life expectancy than people placed lower in the social hierarchy. Despite modern changes in the perception of, and knowledge about, social inequality and mortality, these dances of death still capture the imagination, and they suggest that the phenomenon of socioeconomic inequalities in mortality could be used more to emphasize contemporary moral messages on social inequality.  (+info)