This research explores the remarkable global progress in access to primary education over the past century. In 1900, less than one-third of boys and one-fourth of girls were enrolled in school. By 2023, enrollment reached nearly 90% for both genders, closing much of the historical gap. While global parity has been achieved, significant disparities still persist in some regions, highlighting the ongoing need for inclusive education policies. Source: Our World in Data (Esteban Ortiz-Ospina) Data: UNESCO Institute for Statistics (2025), Lee & Lee (2016)