Tuberculosis pandemic had some North Dakota schools trying open air classrooms in the winter of 1922-23 Students might not complain about the hardships of online schooling during COVID-19 when they see what some Fargo children in 1922 had to do during the tuberculosis outbreak. Brrrr. 6:00 am, Dec. 20, 2020 × To prevent the spread of tuberculosis, many American schools, including some in North Dakota, opened all of their windows, even in the cold of winter. This is a classroom in Manhattan. Photo courtesy: Library of Congress FARGO — While millions of American children are staying healthy and safe this year through distance learning, their great- or great-great-grandparents did something a little different: They opened all the windows and wore sleeping bags to school.