The 1880 United States Population Databasae

steven ruggles1880年美国人口普查为社会和经济研究提供了一个新的数据来源。该数据库涵盖了整个美国人口，是研究19世纪后期美国社会经济和社会组织的重要资源。19世纪晚期是研究生育率下降、城市化、移民、家庭组成和职业结构的关键时期。1880年的数据库包含了关于这些主题的丰富信息，这些信息将通过创建这个新的微数据集得到充分的探索。微数据集将是对现有的1880年IPUMS（综合公共使用微数据集）样本的改进，允许对普查出版物未涵盖或未完全制表的广泛主题进行交叉制表，填补县和市汇总数据系列的空白。更重要的是，该数据集的可用性为纵向和多层次多变量分析开辟了潜力。该数据库将通过由美国国家科学基金会资助的基础设施项目“国际综合微数据访问系统”以及传统数据档案进行分发。为了确保长期保存，数据库将被转移到稳定的介质中，并永久存档在明尼苏达大学图书馆新的长期数字存储设施中。此外，完整的数据库和机器可读的文档将存放在美国国家档案和记录管理局的电子记录中心和密歇根州安娜堡的大学间政治和社会联盟（ICPSR）。

SES-9910961Steven RugglesThis award provides funding to make available a new data source for social and economic research-information from the 1880 U.S. Census of Populations. The database covers the entire U.S. population and is an important resource for the study of the economic and social organization of late-nineteenth century American society. The late nineteenth century is a critical period in the study of fertility decline, urbanization, immigration, household composition, and occupational structure. The 1880 database includes a wealth of information on these topics that will be fully explored through the creation of this new microdata set. The microdata set will be an improvement over the extant 1880 IPUMS (Integrated Public Use Microdata set) sample, allowing for the cross-tabulation of a wide range of topics that were not covered by census publications or incompletely tabulated, filling a gap in aggregate data series for counties and cities. More importantly, this availability of this data set opens up the potential for longitudinal and multi-level multivariate analyses.The database will be distributed via the "International Integrated Microdata Access System," an infrastructure project funded by the National Science Foundation, as well as through conventional data archives. To ensure long-term preservation, the database will be transferred to stable media and permanently archived in the new long-term digital storage facility of the University of Minnesota Library. In addition, the completed database and machine-readable documentation will be deposited in the Center for Electronic Records of the National Archives and Records Administration land the Inter-university Consortium for Political and Social (ICPSR) in Ann Arbor, Michigan.