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>
<span>Denis Kearney (1847–1907) was a California labor leader of the late 19th century who was known for his nativist and racist views about Chinese immigrants.</span><span>He didn't support immigration. </span>
<span>that Hellenistic inventor and mathematician would be : D. archimedes
During his bath time, archimedes found out that if an object is partially or completely submerged in a fluid, it will create a force of magnitude which is equal to the fluid in opposite direction from where it's come from, which is leveraged in the development of modern ships</span>
