Full Name=Maria Tecla Artemisia Montessori; Profession= Italian physician, educator, and innovator; originator of the Montessori method of child-centered education and influential author on scientific pedagogy whose work transformed early childhood education worldwide; Nationality=Italian; Born=31 August 1870; Birthplace=Chiaravalle, Ancona province (Marche), Kingdom of Italy, a provincial town where her father worked as an accountant in the civil service and her mother encouraged her intellectual development through reading. Generation=Late Victorian and early Progressive Era generation of European social reformers and scientific educators who came of age in the industrializing turn of the 20th century; Chinese Zodiac=Metal Horse (Year 1870 in the Chinese sexagenary cycle, associated with dynamic, independent, and pioneering qualities). Zodiac Sign=Virgo, ruled by Mercury, emphasizing analytical intellect, meticulous observation, and service, with the Sun in the first decan of Virgo on August 31; Age in 2026=156 years old if living, calculated from her 1870 birth year; Marital Status=Never married, choosing to remain single to continue her demanding medical and educational career in a patriarchal society that expected women to abandon professional life upon marriage. Children: One biological child, her son Mario Montesano Montessori, born in 1898, later her close collaborator in developing and spreading Montessori education and father of four children who extended her educational legacy; Description=Trailblazing Italian physician and pioneering female medical graduate of the University of Rome who redirected her scientific training toward education, first working with children with disabilities in Rome before opening the Casa dei Bambini in 1907 and systematizing an experimental, child-centered pedagogy that emphasized prepared environments, self-directed activity, hands-on materials, and respect for each child’s natural developmental rhythm; over subsequent decades she lectured internationally, published influential books, founded training centers, and inspired thousands of Montessori schools on every continent, profoundly influencing ideas about early childhood education, independence, and the spiritual dignity of the child while advocating for peace, women’s education, and the rights of marginalized children; Cause of Death=Cerebral haemorrhage on 6 May 1952 in Noordwijk aan Zee, Netherlands, at the age of 81, while planning further travel and work and leaving her pedagogical legacy to her son Mario and the Association Montessori Internationale