Niels Bohr
In 1913, Niels Bohr created the groundbreaking atomic model that formed the basis of our understanding of how the world is built, and later of quantum mechanics, which has revolutionized technological development.
He received Denmark's first Nobel Prize in 1922, the year before in 2021 the Department of Theoretical Physics was inaugurated at the University of Copenhagen (later the Niels Bohr Institute).