1.Explorations in Economic History is an academic journal of quantitative economic history. It follows the quantitative or formal approaches that have been called cliometrics or the new economic history, applied to any place and time. These formal approaches apply mathematical economic theory, model building, and statistical estimation.
Tables of contents for the issues back to 1969 are online, and the 1969 issues were numbered as volume 7. This implies that the journal was established in about 1963. It is published by Elsevier. The editors are Richard H. Steckel and Timothy Leunig.
2.The National Historical Geographic Information System (NHGIS) is a historical GIS project to create and freely disseminate a database incorporating all available aggregate census information for the United States between 1790 and 2000. The project has created one of the largest collections in the world of statistical census information, much of which was not previously available to the research community because of legacy data formats and differences between metadata formats. In addition, NHGIS has created cartographic boundary files compatible with every census, and over 50 million lines of metadata describing the collection. The statistical and geographic data are disseminated free of charge through a sophisticated online data access system.
NHGIS was launched in 2007 and is maintained by the Minnesota Population Center at the University of Minnesota and is funded by the National Science Foundation and the National Institutes of Health.
3.Astrology and astronomy were archaically one and the same discipline (Latin: astrologia), and were only gradually recognized as separate in Western 17th century philosophy (the "Age of Reason").
Since the 18th century they have come to be regarded as completely separate disciplines. Astronomy, the study of objects and phenomena originating beyond the Earth's atmosphere, is a science[1][2][3] and is a widely-studied academic discipline. Astrology, which uses the apparent positions of celestial objects as the basis for psychology, prediction of future events, and other esoteric knowledge, is not a science and is typically defined as a form of divination
