Impact: the invention of vaccines greatly reduced the impact that diseases had on people the vaccines saved people's lives, allowed the population to grow, and helped industry expand because it lead to more people being able to work and wouldn't die from disease.

Impact: The typewriter allowed for long distance communication between people, but it also was perfect for businesses. Monopolies and businesses alike would take advantage of this technology to communicate with each other and eventually expand westward. It could also be used for people to message each other. 

Impact of the Electric Generator: Produced the electrical power for automobiles, ships, trains, and aircrafts. It also kept families sustained during power outages.

By: Alexander Graham Bell and Charles Sumner Tainter

Impact:

It made communication much more efficient. 

It made it easier for businesses to communicate with each other.

It allowed communication over longer distances, good for connecting different regions of the US and extending to distant markets.

Telegraph

By: Samuel Morse and Alfred Vail

Impact:

With the adoption of Morse Code in the mid-1880s, the telegraph became a crucial tool of communication. 

It also become useful to politics where politicians could recruit people to support their campaigns.

It transformed how journalists and newspapers conducted business.

It also helped in communication with different markets.

It reduced the cost of producing steel, which made it easier to mass produced. Eventually, steel overtook iron, which was a heavier and weaker. 

Impact: This helped establish a social order after sundown as well as letting people work longer hours and to navigate/travel safely in the dark. Over the next few decades, the light bulb was improved upon up to what we use today.