title: The past is a foreign country.
authors.affiliation: Rosenstiel Basic Medical Sciences Research Center, Brandeis University, Waltham, MA 02454-9110, USA. petsko@brandeis.edu
authors.forename: Gregory A
authors.initials: GA
authors.lastname: Petsko
mesh_terms: D003710:Demography; D049673:History, 20th Century; D006801:Humans; D008967:Molecular Biology / Q000639:trends*; D011157:Population Dynamics