The project investigated the demography of Salmonella enterica, building on a large collection of diverse S.enterica from animals and the environment to provide context for deeper phylogenetic analysis and balance the current collections which are biassed towards clinical and outbreak strains. It will also look at ancient DNA from skeletons and coprolites to investigate the population history of S. enterica. This data is part of a pre-publication release. For information on the proper use of pre-publication data shared by the Wellcome Trust Sanger Institute (including details of any publication moratoria), please see http://www.sanger.ac.uk/datasharing/