When We Knew Connected histories of knowledge

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10 fields · One unfolding history

When We Knew

Knowledge did not arrivein chapters

Ideas crossed fields, experiments answered theories, and one discovery often made another possible.

10 connected fields

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Each field unfolds chronologically, through discoveries, ideas, experiments, and evidence.

01 Physics Canonical timeline How the universe became understandable. Explore Physics
02 Electricity Canonical timeline How current became infrastructure. Explore Electricity
03 Biology Canonical timeline How life became understandable. Explore Biology
04 Computing Canonical timeline How calculation became computation, networks, and intelligence. Explore Computing
05 Chemistry Canonical timeline How substances became elements, atoms, molecules, and materials. Explore Chemistry
06 Material Culture Canonical timeline How material culture made knowledge durable. Explore Material Culture
07 Money Canonical timeline How value became ledgers, money, and networks. Explore Money
08 Mathematics Canonical timeline How reasoning became measure, proof, and abstraction. Explore Mathematics
09 Earth Sciences Canonical timeline How Earth became a dynamic history. Explore Earth Sciences
10 Cosmology Canonical timeline How we learned to test the history and contents of the Universe. Explore Cosmology

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Across fields

Canonical connections.

Follow the verified milestones that cross the boundaries between fields.

When We Knew

Knowledge did not arrive in chapters

Ideas crossed fields, experiments answered theories, and one discovery often made another possible.

Move gently to shift perspective · select a field to enter

Canonical connections

Across fields

Verified milestones that make the connections between disciplines explicit.

Curated paths

Follow a story

Focused sequences drawn from the same canonical milestones as each full timeline.

01 PhysicsEinstein's pathCanonical sequence 02 ElectricityTesla's currentCanonical sequence 03 BiologyFrom Mendel to CRISPRCanonical sequence 04 ComputingTuring to AICanonical sequence 05 ChemistryFrom elements to moleculesCanonical sequence 06 Material CultureFrom marks to printCanonical sequence 07 MoneyFrom ledgers to channelsCanonical sequence 08 MathematicsFrom counting to abstractionCanonical sequence 09 Earth SciencesFrom deep time to a dynamic EarthCanonical sequence

Complete timelines

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01 PhysicsHow the universe became understandable. Canonical timeline 02 ElectricityHow current became infrastructure. Canonical timeline 03 BiologyHow life became understandable. Canonical timeline 04 ComputingHow calculation became computation, networks, and intelligence. Canonical timeline 05 ChemistryHow substances became elements, atoms, molecules, and materials. Canonical timeline 06 Material CultureHow material culture made knowledge durable. Canonical timeline 07 MoneyHow value became ledgers, money, and networks. Canonical timeline 08 MathematicsHow reasoning became measure, proof, and abstraction. Canonical timeline 09 Earth SciencesHow Earth became a dynamic history. Canonical timeline 10 CosmologyHow we learned to test the history and contents of the Universe. Canonical timeline