1844 (1 dic 1844 anni – 1 apr 1845 anni)
Descrizione:
Charles Goodyear obtained a patent to develop a method to treat rubber to make it stronger. This was a continuity because inventors were already working on a way to advance the economy.
Aggiunto al nastro di tempo:
Data:
1 dic 1844 anni
1 apr 1845 anni
~ 4 months