4steps from the big bang
118things can go into it
leather
MaterialSubstance
Tanning stops animal skin from rotting by locking its proteins together.
First appearedDate not yet known
Made Of
Everything is made of something.← What it takes
What it leads to →
Tanning stops animal skin from rotting by locking its proteins together.
From the big bang to leather
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
Hhydrogen13.8 bn yrs ago
water4.4 bn yrs ago
cowc. 10,000 yrs ago
leatherdate unknown