0 Assigned ID: 2851 ----- Attempting Submission 1 (Wed Mar 23 00:49:05 GMT 2022) ----- We propose to uniformly reduce and analyze all ACS and WFC3 imaging that has targeted Local Group dwarf galaxies over the past ~20 years. Though over >1000 orbits of HST have been dedicated to LG dwarf galaxies during this time, <5% of this rich dataset is in the form of high-level science products (i.e., photometry and artificial star tests) that are publicly available. Our sample totals 1540 orbits that target 64 galaxies. This legacy archival program will produce and publicly release uniformly calibrated, time-stamped, multi-band photometry for ~10^6 resolved stars and tens of millions of artificial star tests that are required to characterize uncertainties in the data. This legacy dataset will enable community-based studies of variable stars, star formation, stellar archaeology, stellar evolution, near-field cosmology, and much more. As part of a targeted science component, we will measure, analyze, and publicly release homogeneous star formation histories and update distances to all galaxies using newly available Gaia parallaxes to metal-poor RR Lyrae in the MW. The products from this program will provide the broader community easy access to a large volume of scientifically rich and diverse data that HST has generated for LG dwarf galaxies over its lifetime. The authors of this proposal all have extensive expertise in reduction and analysis of HST photometric datasets, star formation history measurements and variable star studies. Dr. Weisz and Dr. Skillman have had a leading role in many Local Group HST medium/large programs (e.g., GO-13028, GO-13739, GO-13768, GO-15902). Dr. Dolphin is the main developer of Dolphot, a popular photometric reduction pipeline, is the author of several seminal studies on the measurement of star formation histories, and the developer of MATCH, the software that will be used to derive our star formation histories. Dr. Savino has experience in point source photometry, the derivation of precise stellar ages and the evolutionary properties of low-mass evolved stars. Galaxies 0 Legacy false false false false false false SUPPORTED