What do a government based on a parliamentary system and a government based on a democratic system have in common?

Why did leaders such as siddhartha gautama abandon hinduism to createbuddhism around 500 bce:

Which of the following was probably the most difficult challenge facing construction of the railroad?

According to ram mohun roy, in order to successfully move towards independence, indians had to? a.) convert to christianity. b.) hold firmly to traditional ideas. c.) take up arms against their british ruler. d.) change some of their culture and religious practices.