This Infographic explains the Evolution Of Hearing Aids from the 1800s to the 2000s. Up until There, we consider the evolution of hearing aids explained well in the Infographic,Up until the 16th century, people assumed that individuals with Hearing Loss are a disability. Individuals were discriminated against until a Spanish monk named Pedro Ponce disproved this theory by teaching the deaf son how to read, write, speak and do the math There are 7 eras towards the development of the hearing aids.