Adelaide Crapsey was an American poet born on September 9, 1878, in Brooklyn, New York. She is best known for developing the cinquain, a five-line poetic form that emphasizes vivid imagery and emotional depth. Crapsey's work often reflects her interest in nature and the passage of time, showcasing her unique voice in early 20th-century poetry. Crapsey faced significant health challenges throughout her life, including a battle with tuberculosis, which ultimately led to her early death on November 8, 1914. Despite her short life, her contributions to poetry have had a lasting impact, influencing later poets and enriching the literary landscape of her time.