State secrets and a handwritten page by Marx: a look inside the IISG treasury

The International Institute of Social History in Amsterdam preserves a vast collection of global records on social and labor movements, including rare items like a handwritten page from the Communist Manifesto. As longtime director Leo Lucassen retires, he and successor Lily Knibbeler highlight the institution's ongoing role in protecting sensitive historical archives and ensuring the voices of minority and opposition groups are documented.




