THE TRANSFORMATIVE ERA (18 jun 1800 año – 23 mar 1900 año)
Descripción:
Discoveries of more potent substances. The plants in nature were chemically improved. EX. Cocaine was made from coca leaves and codein from opium.
Añadido al timeline:
fecha:
18 jun 1800 año
23 mar 1900 año
~ 99 years