The Ancient Greek civilization is so well known because of how much it impacts society today. They were the first ones to set the stage to many key things still used today like philosophy, literature, astronomy, mathematics, and medicine. Not only does it impact us it also affected other great civilizations like the Roman Empire. They overall are the root of who we are as a society today especially in the education aspect.
Many people were mining for gold, silver, and oil during the 1800s to gain wealth and fame. So there were definitely many miners during the 1800s. Many people needed to put their valuables in banks. So there were also a lot of bankers, doctors, lawyers, ministers, and many other "White Collar" jobs.
Hinduism originated in eastern India and believes in chrisna while Buddhism is a philosophy which originated in Tibet