Trends in Twin Births and Survival in Rural Spain: Evidence from 18th to 20th Century.

This study examines the changes over time of the twinning rate and infant and child mortality across 17 rural villages in the province of Zaragoza (Spain) over a span of 200 years. The aim is to understand how the twinning rate evolved in conjunction with the processes of economic and social modernization, as well as the demographic transition. During the period analyzed, the twinning rate increased by 10%, rising from 1.

Analyzing the effects of the Spanish Civil War on biological well-being through new anthropometric indicators.

Numerous studies have demonstrated the negative impact of severe economic shocks (such as those associated with wars) on the growth of children and adolescents. Individuals exposed to these shocks during their developmental years exhibited shorter average heights compared to both previous and subsequent generations. Anthropometric research has highlighted the sensitivity of the height variable in understanding the biological well-being of children and adolescents.

Height and political activism in rural Aragón (Spain) during the 20th century. A new perspective using individual-level data.

This article explores the relationship between the political leanings of more than 1000 men born in the 1870-1970 s in 11 rural Aragonese villages and their biological well-being during childhood and adolescence, proxied by height. The aim is to test whether an individual was more likely to be left-wing if his level of biological well-being was lower and, therefore, with more incentives to fight against the social inequality that had negatively affected his family. Our results confirm that, for most of the study period, there was a strong relationship between shorter height and political activism in left-wing parties and organizations.

The effect of height on family formation in rural Spain, birth-cohorts 1835-1975.

This article examines the relationship between the height of adult males and marital outcomes, including likelihood of marrying, age at marriage, and marital fertility, in rural Spain. For this analysis, a sample of 4,501 men born between 1835 and 1975 living in 14 villages in northeastern Spain was taken. Previous research has shown that shorter individuals are less likely to marry.

Did parental care in early life affect height? Evidence from rural Spain (19th-20th centuries).

This article examines the relationship between childhood mortality experienced within families and the height of surviving male children. Sibling mortality, controlled by different socioeconomic and environmental variables, is used as an approximation of the hygienic and epidemiological context and practices within the family. The analysis is based on a sample of 2783 individuals born between 1835 and 1977 in 14 villages in north-eastern Spain.

Rethinking the Fertility Transition in Rural Aragón (Spain) Using Height Data.

Based on an analysis of the life trajectories of 2510 conscripts and their families from a Spanish rural area in the period 1835-1977, this paper studies the development of the fertility transition in relation to height using bivariate analyses. The use of heights is an innovative perspective of delving into the fertility transition and social transformation entailed. The results confirm that the men with a low level of biological well-being (related to low socio-economic groups) were those who started to control their fertility, perhaps due to the effect that increased average family size had on their budget.

The association between male height and lifespan in rural Spain, birth cohorts 1835-1939.

This article analyses the relationship between male height and age at death and its evolution over time among conscripts born in fourteen villages in north-east rural Spain. A total of 1,488 conscripts born between 1835 and 1939 (and who died between 1868 and 2019) have been included in the analysis (based on the study of 3 sub-periods: 1835-1869, 1870-1899, and 1900-1939). The height data have been obtained from military service conscription records and the demographic and socioeconomic information of the deceased was obtained from parish archives and censuses.

Revisiting the effect of time of birth on neonatal, infant, and child mortality in rural Spain, 1830-1929.

Objectives: This article aims to determine whether different patterns of mortality occurred among children born during the day and the night respectively, between 1830 and 1929.

Methods: The data include the time of birth and death of 9814 individuals from 10 villages in rural Spain between 1830 and 1929, within a context of natural births at home with little medical support. These data were subjected to a comparative analysis relating to the time of birth and the age at death.

The influence of the lunar cycle on spontaneous deliveries in historical rural environments.

Background: Many societies and their medical practitioners throughout the world have historically linked lunar phases to the frequency of births. During more recent decades, academics have discussed this alleged relationship using modern data, obtaining differing results.

Objectives: The purpose of this study is to analyse the relationship between the phases of the moon and the frequency of deliveries in a rural historical context without electricity, and among women of low nutritional status.