It was important because it supported the Hanseatic trade route in the Baltik and the canal needed to be built between major trading cities. This was one of the great examples of co operation across borders in the North Europe in the area of free trade.
There are no options given, but historically speaking it was the invention of "Cotton Gin".
A cotton gin was a revolutionary invention which enabled people to
easily separate cotton fibers and seeds; previously it used to take a large
time sorting it manually. The inventor behind this was <span>Eli Whitney. The processing was made easy but
still slaves were needed to grow cotton.</span>
1954:When his bike was stolen he promised to "whup whoever stole it"
1960:He wins the light-heavyweight gold medal at the Summer Olympics
1979: announces retirement
I hope these help...
