Search Cold War archives. Trace connections. Follow the evidence.
Create or select a session in the sidebar to begin. Ask questions in plain language — Friday searches declassified documents, resolves codenames, and cites sources.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua — the Concordance Index is the master index of people, organizations, and cover names that Friday uses to expand aliases and resolve codenames across the archives. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.