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Radio was not an important invention in the early 20th century. Instead it was developed by Heinrich Hertz in the 18th century. The cotton gin (APEX)
Among ancient civilizations, the Roman Empire was the first to have true forms of democracy: all of its most important officials (with the exception of the members of the Senate) were elected, and that for a limited period only. Rome even had (elected) officials with wide powers to protect the common people from 'tyranny' by the Senate or other high officials: the Tribunes of the Plebs (=the common people)."Athens" or "Greece" have the traditional reputation of being the 'cradle of democracy', but that is a 19th century invention. All States in Greece including Athens were ruled by small groups of powerful families (so-called oligarchies) and Athens and Greece never had any democratic institutions.
they affect there lives because it saved time and made deleveries easier and faster to arrive.
I would say that the automobile was the transportation development that had the greatest long-term impact on the American economy. Just think of all the things that its invention affected--tourism, hotels, construction businesses, etc. Plus, the autombile is still affecting the American economy today.
Benjamin Franklin's first invention were wooden flippers. He made them for his hands and feet to help him swim better. He was 8 years old when he invented them.Ben franklins 1st invention were wooden flippers made when he was 8.
The invention of writing allowed for historical record to be easily accessible; which played a huge part in the development of civialization.
Prior to the development of ether the was no anesthetic for surgery
Elisha's invention was important because it allowed skyscrapers and high story buildings to be built. It also created a leap in architectural advances
It made machines safer to operate then before the invention of steam power
This thing doesn't make sense at all...but the answer is 42
Another Answer: The Development of new methods of anesthesia
The invention of the plow was so important to the Sumerians because it helped farmers
The invention of the principles of perspective
They are credited with the invention of democracy and philosophy.
The waterwheel.
The waterwheel.
No they are still a dictatorship. If the representative aspects of their supposed democracy are fictitious or an invention to facilitate their dictatorial rule they are simply a dictatorship.