2steps from the big bang
115things can go into it
concrete
MaterialSubstance
The most used human-made material on Earth. Roman concrete has lasted 2,000 years.
First appearedc. 300 BCE
Made Of
Everything is made of something.← What it takes
What it leads to →
The most used human-made material on Earth. Roman concrete has lasted 2,000 years.
From the big bang to concrete
The most direct chain from the start of the universe, following what things are made from and, for living things, what they evolved from. Each step shows when it first appeared.
big bang13.8 bn yrs ago
Lilithium13.8 bn yrs ago
concretec. 300 BCE