ITEM: The Information Transmission Evolution Map
ITEM is a connected history of how humans learned to create, preserve, copy, send, organise, find, interpret and authenticate information.
What is it for?
ITEM helps you see how familiar technologies fit into a much longer story. A smartphone is not one invention. It sits on top of writing, numerical notation, electrical transmission, computing, networking, storage, broadcasting, search and many other systems.
How should I use it?
Start with the guided story when you want the big picture. Use the themes when you want to trace one function, such as storage or transmission. Use the library when you already know what you are looking for.
What makes ITEM different?
ITEM does not treat history as a parade of isolated gadgets. Each topic asks what problem was reduced, what earlier systems it depended on, what new problems it created, who gained power, who lost access and what older methods survived.
Why are some dates broad?
Speech, memory, ritual and early record systems did not arrive on neat invention dates. ITEM distinguishes early evidence, proposals, demonstrations, practical use, standardisation and mass adoption instead of inventing one mythical birthday.
Research and corrections
Every topic links to sources and fuller research notes. The people and organisation profiles are being expanded in a later editorial phase, so they are available for exploration but are not included in the public search-engine sitemap yet.