When people hear about Salem, Massachusetts, their thoughts will most likely turn to the witch trials of 1692. But the city has four centuries of fascinating history, and another wrinkle in the narrative is the story of Salem's Polish community. In 1998, the Salem Maritime National Historic Site acquired St. Joseph Hall, a building which is a key part of this story. From 2007 to 2009, the site investigated the history of Poles in Salem, and the report on this site is one of the primary products of this extended study. Visitors to the site can read the entire study, or they can just listen to a few pieces of oral history. The study is over 300 pages long, and it is full of maps, diagrams, preservation analyses, and other items. It's an amazing document that explores the history of this community from the 1870s to the present day.