Please join us for an afternoon of historical and scientific lectures (virtual) to celebrate 100 years of the Eastern Pennsylvania Branch of the American Society for Microbiology. The Eastern PA Branch can trace its origin to February 24, 1920. On this date, Dr David H Bergey invited a group of individuals interested in bacteriology and pathology to attend a meeting in his office on the second floor of the Laboratory of Hygiene, at the University of Pennsylvania (34th Street between Spruce and Walnut). The purpose of the meeting was to organize the Eastern Pennsylvania Chapter of the Society of American Bacteriologists.