A longtime Gettysburg historian offers a detailed account. For good reason, the second and third days of the Battle of Gettysburg have received the lion's share of attention from historians. With this book, the critical first day receives its due. Harry Pfanz describes the engagements in McPherson Woods, at the Railroad Cuts, on Oak Ridge, on Seminary Ridge, and at Blocher's Knoll, as well as the retreat of Union forces through Gettysburg and the Federal rally on Cemetery Hill. Throughout, he challenges many long-held assumptions about the battle.