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Historical demography is the quantitative study of human population in the past. It is concerned with population size, with the three basic components of population change--fertility, mortality, and migration, and with population characteristics related to those components, such as marriage, socioeconomic status, and the configuration of families. ==Sources== The sources of historical demography vary according to the period and topics of the study. For the recent period - beginning in the early nineteenth century in most European countries, and later in the rest of the world - historical demographers make use of data collected by governments, including censuses and vital statistics.〔(Historical Demography ) in Encyclopedia of Public Health, Retrieved on 3 May 2005〕 In the early modern period, historical demographers rely heavily on ecclesiastical records of baptisms, marriages, and burials, using methods developed by French historian Louis Henry, as well as hearth and poll tax records. For population size, sources can also include the size of cities and towns, the size and density of smaller settlements, relying on field survey techniques, the presence or absence of agriculture on marginal land, and inferences from historical records. For population health and life expectancy, paleodemography, based on the study of skeletal remains, is another important approach for populations that precede the modern era, as is the study of ages of death recorded on funerary monuments. The PUMS (Public User Microdata Samples) data set allows researchers to analyze contemporary and historical data sets.〔Sylvia Andrews, "Public User Microdata Samples (PUMS): Do-lt-Yourself Census Data." ''Indiana Libraries'' (2014) 13#2 pp: 19-26. (Online )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「historical demography」の詳細全文を読む スポンサード リンク
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