In ancient India, the Untouchables were the people who happened to fall outside the formal Caste System. Usually, but not always, this pertained to low-level people in society.
From its earliest years, the Senate has jealously guarded its power to review and approve or reject presidential appointees to executive and judicial branch posts. In its history, the Senate has confirmed 126 Supreme Court nominations and well over 500 Cabinet nominations.
Answer:
Because people found an extra source of energy with an incredible capacity for work.
