One of Long Now’s founding premises is that humanity’s most significant challenges require long-term solutions, including institutions that caretake and guide the knowledge and commitment needed to work over long time scales. However, there are a limited number of organizations that have managed to stay stable over many centuries, and in some cases, over a millennium. Long Now has been informally tracking these organizations for years, and in 02019 formed The Organizational Continuity Project to study long-lived institutions more formally. Alexander Rose, Long Now's Executive Director, discusses how The Organizational Continuity Project hopes to discover the lessons behind these long-lived organizations and build a discipline of shareable knowledge that will help contemporary institutions, companies, and governments develop into robust, long-lasting structures. In turn, we hope these institutions will be better equipped to address civilizational-scale problems with multi-generational thinking.