What engineering accomplishment of the 20th century has had the greatest impact on society?

There were a lot of great engineering achievements presented in the 20th century. To name some, we have the electricity, airplane, radio and television, water supply and distribution, computers, television, X-ray imaging, nuclear technologies, and of course the Internet. Among all these achievements, Internet has brought the greatest impact in the society for most people, if not all. It is evident that Internet satisfies us with the different services it can offer. It became a huge part of our daily lives, especially that it makes work easier and faster. Nowadays, Internet is being used in different fields such as the education sector, banking, food industry, retail, transportation, as well as the health care industry.

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explanation:

learned it in 6th

was a long, primarily nonviolent series of events to bring full civil rights and equality under the law to all americans. the era has had a lasting impact on united states society, in its tactics, the increased social and legal acceptance of civil rights, and in its exposure of the prevalence and cost of racism. in the south violence and fraud in southern elections from 1868 to 1876, which had reduced black voter turnout and enabled southern white democrats to regain power in state legislatures across the south