Answer:
<h2>Telegraph</h2>
Explanation:
Telegraph is the answer I would suggest, as that was the first invention that greatly accelerated the speed of communication. Following that came the telephone, and then after that, cell phones and the Internet. All of these communication tools have accelerated the rate and amount of global communication. But the first step in that direction was the telegraph.
The telegraph was developed in the first part of the 19th century by Samuel Morse and other inventors. Morse also developed a code (which has been named after him) for communicating messages via short and long electronic signals over telegraph wires. Morse sent his first telegraph message in 1844. By 1866 telegraph lines had been laid across the Atlantic Ocean for communication between the USA and Europe.
As summarized by the <em>History Channel, "</em>The telegraph revolutionized long-distance communication. ... Although the telegraph had fallen out of widespread use by the start of the 21st century, replaced by the telephone, fax machine and Internet, it laid the groundwork for the communications revolution that led to those later innovations."
I world say the answer is between 400 and 200 BCE
At the Battle of Gettysburg, It was a crushing blow to rebel morale. Their nearly undefeated hero, general Lee, had been defeated. Of course, it was a huge morale boost for the Union, who had been grumbling about the war in the East because of the invincible Lee. In addition, after the Battle of Gettysburg, two great speeches were given, one by the president himself. He showed how the Union needed to keep fighting this war to keep the greatest nation from leaving the earth and so that the country could truly be one where all men (or people) could be equal. At Vicksburg, it was more of a military advantage. In addition to being a highly defensible location to put things of high importance in, it also completed the final piece of the Mississippi River. With the Union controlling all of the river, the Union could split the enemy in 2. This completed part of the Anaconda Plan.The Union could also use the river as a platform for transportation of troops, supplies, and as an artillery platform with their new ironclads. I think that the Battle of Gettysburg would have been more important. There was already low morale in the Union army. They were asking thrmselves why they were fighting a war to get people back into out country that didn't want to be here. Already, nearly 200 thousand casualties had taken place. They thought this was far too much to end slavery. If Lee had not finally been defeated, Vicksburg would never have happened, and the outcome of the civil war could have been very different.
