where did louis pasteur go to school

Louis Pasteur studied at several institutions in his early education, progressing from primary and secondary schooling in eastern France to prestigious Parisian institutions as he pursued higher learning. He attended the Collège d’Arbois for his early schooling in Arbois, then moved to Besançon for secondary studies at the Royal College (Collège Royal de Besançon). After preparatory work and examinations, he entered the École Normale Supérieure in Paris, where he ultimately earned his doctorate in chemistry in 1847. He also studied and worked with various teachers in Paris, including brief engagements at the Lycée Saint-Louis and other institutions during his preparation for the École Normale Supérieure admissions. These steps laid the foundation for his later groundbreaking work in chemistry, crystallography, and microbiology. [Consolidated from standard historical biographies and education timelines]