This year, NIDCR and the National Heart, Lung, and Blood Institute (NHLBI) observed 75 years as NIH institutes. To commemorate this milestone, the two institutes paired up to host the NHLBI and NIDCR Joint 75th Anniversary Symposium: The Science that Unites Us on May 22, 2024. The symposium covered the institutes’ histories, notable accomplishments, and overlapping areas of research.