The poem Evangeline is about what?

The poem Evangeline, written by Henry Wadsworth Longfellow, tells the story of a young woman named Evangeline who is separated from her beloved, Gabriel, during the Great Expulsion of the Acadians from their home in Grand-Pré in 1755. The poem follows Evangeline's long and arduous journey throughout North America as she searches for Gabriel, encountering various challenges and hardships along the way.