Kardashev index
0.617
Based on primary energy power · Type I = 1
AccelerationFour-dimensional view123 years agoInternal Combustion and Flight
1903-12-17
Powered Flight
The Wright brothers achieved the first powered, controlled, crewed flight.
Art style · 1900s sepia photograph
Origin of Life on EarthDinosaurs and MammalsAI Agents
Arrow keys step through pictures · Wheel to zoom · Drag or click to select time
Civilization metrics
Each sparkline shows the documented history of a metric on a logarithmic time axis. The dot marks the selected moment.
1.68Bpeople
1/5 of today
1.5×10¹²W
1/14 of today
—
No reliable data yet · data begins 1945
0.53 seconds
18 times slower than today
211km/h
1/189 of today
Near this moment
The eight closest milestones. Select a title to jump there.
Karl Benz patented a three-wheeled car powered by an internal combustion engine. Source
The US Census processed its data with Hollerith's tabulating machines. Source
Röntgen discovered X-rays, letting doctors see inside the human body for the first time. Source
Marconi received in Newfoundland a radio signal sent from England. Source
The Wright brothers achieved the first powered, controlled, crewed flight. Source
Einstein proposed special relativity and mass–energy equivalence. Source
Ford adopted the moving assembly line, turning the car into a mass-market product. Source
The Haber process went into production at BASF's Oppau plant, making large-scale nitrogen fertilizer possible. Source
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Scenes across eras
Each era illustrated in its own style.
Every timeline entry cites its source. Metrics interpolate logarithmically between sourced data points. Forecasts include institutional and community views, and attributed site scenarios; years are not guaranteed realization dates. Illustrations are AI-generated in each era's style.