The Fall 2020 edition of SABR's Baseball Research Journal (Volume 49, issue 2), runs the gamut of research, from the nineteenth century to events that took place in 2020. The article that anchors this issue of the journal, appearing last, is Richard Hershberger's account of the "First Baseball War," in which the nineteenth-century clash between leagues contributed to the creation of the reserve system that suppressed free agency until the late twentieth, while Mary Hums and her team docume...