Rare Disease Day is an international event held on the last day of February to raise awareness about the impact of rare diseases on patients’ lives and to emphasize the need for research. This year, Broad Institute of MIT and Harvard in collaboration with The Termeer Foundation hosted the 9th annual Rare Disease Day event, “Climbing Ladders to Cures in Rare Disease Research'', featuring opening remarks from Anna Greka and Belinda Termeer, and speakers Wendy Chung, Winston Yan, Michelle Rengarajan, Natalie Galant, Jim Geraghty, Kaitlin Samocha, Lukas Lange, Michael Segal, and Sunitha Malepati.