1889 – Born on the 7th of February in Nilsby, Sweden.
1912 – He entered the University of North, Dakota.
1917 – He received a Ph.D. in physics at Yale University.
– He worked at AT&T’s Department of Development and Research.
1924 – He helped to develop AT&T’s first facsimile machines that were made public.
1932 – He published a classical paper on stability of feedback amplifiers.
1960 – He received the IRE Medal of Honor for "fundamental contributions to a quantitative understanding of thermal noise".
– He was awarded the Stuart Ballantine Medal of the Franklin Institute for his theoretical analyses and practical inventions.
1969 – He was awarded the National Academy of Engineering’s,"in recognition of his many fundamental contributions to engineering".
1976 – He died on the 4th of April in Harlingen, Texas.