A decade after Mark Zuckerberg’s wife Priscilla Chan launched a tuition-free private school aimed at supporting low-income children and their families, the ambitious education project has closed, highlighting both the impact and fragility of philanthropy-backed community institutions. According to a report by the Wall Street Journal, the Primary School, co-founded by Chan and funded majorly through the Chan Zuckerberg Initiative (CZI), shut its doors un June after receiving more than $125 million in funding over roughly a decade.