The first monotheistic religion was Zoroastrianism. It was founded by the Persians around 2000 BCE. Linguistically, the books of Zoroastrianism have much in common with the Vedic texts, however the Vedic religion itself was polytheistic. Judaism and Christianity both emerged later, inspired by Zoroastrianism.
By working together voluntarily, the railroad companies were able to standardize their timetables in 1883. The correct option among all the options that are given in the question is the second option. The creation of time tables made the railway system more efficient and people could know the exact time at which their goods or the people travelling will reach their destination.
The basis of the division was social class I believe it was devised between the wealthy, middle, and lower class the lower class included slaves and indebted servants
The cause of the French revolution is Frances sent agravted by French invovment in the American revolution led Louis xvi to implement new taxes to reduce privileges. the deregulation of the gain market advocated by liberal economist's resulted to an increase in bread prices in periods of time the good society which would lead to a masses resolt.