With the 250th anniversary of the American Revolution happening this year, don’t you want to learn all of the history they didn’t tell you? Head to  the Medford Public Library for a screening of the new documentary, “Concord’s Secret History.” The film reveals a long-suppressed secret, set in Concord, where the first shots were fired in the Revolution on April 19, 1775. While Concord is often celebrated for its role in the fight for freedom, few are aware of the untold stories that extend beyond its borders. The film explores hidden narratives from both Medford and Harvard University, offering a richer, more complete picture of the region’s colonial past. Reserve your seat by registering through the library’s online calendar.