Union of International Associations (UIA) is the world’s oldest, biggest and most comprehensive source of information on global civil society. Databases and publications cover many aspects of international organizations – their history, organization and meetings, and the problems and methods with which they work. The main entry point for all databases is: www.uia.org/db. The UIA was founded one hundred years ago, in 1907, by Henri La Fontaine (Nobel Peace Prize laureate of 1913), and Paul Otlet, a founding father of what is now called information science. It is a non-profit non-governmental organization registered under Belgian law as an AISBL. It has consultative status with ECOSOC (since 1951) and UNESCO (since 1952).