1837

Samuel Morse invents the telegraph. With this invention was allowed fast communication. It was useful in business  to  get in touch with far away costumers and salesman

1838

Samuel Morse invents Morse Code which is a method of transmitting textual information as a series of on-off tones, lights, or clicks that can be directly understood by a skilled listener or observer without special equipment.

 

•1847

• Hungarian, Ignaz Semmelweis invents antiseptics.This invention has been extremely important in medicine and surgery because reduces the possibility of infection, sepsis, or putrefaction. ´