-
19,000 BCE
fire
ancestors discovered fire -
19,000 BCE
fire
discovery of fire -
6000 BCE
metallurgy
the first works of metallurgy -
1000 BCE
metallurgy
metallurgy began in Greece and in South America -
100
lucrecio
lucrecio explain the concept of the atom -
metallurgy
metallurgy arrival to mesoamerica -
nomenclature
invents nomenclature -
metallurgy
Early work metallurgy