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"Voices of the Night," Longfellow's debut poetry collection published in 1839, marked his entry into the literary world. Comprising 18 poems on diverse themes including love, nature, travel, and personal reflection, the collection showcased his lyrical prowess, narrative skill, and mastery of poetic forms. Longfellow's first notable poetic effort set the stage for his prolific literary career and established his reputation as a major American poet.