Answer:
Harappa and the city of Mohenjo-Daro were the greatest achievements of the Indus valley civilization. These cities are well known for their impressive, organized and regular layout. They have well laid our plumbing and drainage system, including indoor toilets.
Because she saved millions of slaves with the underground railroad , and directed them north!
The answer is A hope it helps
<span>The Middle-Class, which was newly formed during the Industrial Age, consisted of factory owners, entrepreneurs, and investors. Eventually this new system of classes, Upper/Middle/Lower classes, replaced the out-dated Noble-and-Peasant system because more of the population was gaining wealth.</span>
