Earth's history on one line, from its formation to a single second in 1969. Eons and eras are durations in the colours of the International Chronostratigraphic Chart; times are exact offsets from 2000 CE, shown in millions of years.
Ancient Egypt from its Predynastic cultures and its unification under Narmer to the death of Cleopatra VII and the Roman annexation in 30 BCE: its periods, dynasties and major reigns, its monuments, battles and treaties, and the writings w…
From counting boards and the first algorithms to deep learning: the theory, machines, languages, algorithms, systems, networks, software practice, security and AI that make up computer science, in calendar dates. Moments are tagged and col…
Exact at every scale. Every time is stored exactly, as a whole number or a fraction. A third of a second stays a third however far you zoom, so the formation of the Earth and a single second fit on the same line.
Moments, durations and the links between them. Place events, give periods a start and an end, and connect the ones that belong together.
Read without an account. Anyone can read a public timeline or embed it on a website, and anyone can start one in the browser and export it as a file.
Work together. Collaborators propose changes as pull requests, and the timeline's writers merge them. Every save to the server is a revision you can go back to.
Yours to run. OpenChronology is free software under the GNU GPL version 3. Use it here, as a desktop app, as a single offline file, or on your own server.