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.
As for the rivers, the colonists were aware you must have water to successfully maintain life whether it be human life or plant life, it is necessary. Also being close to water helped them in the workforce, like carrying out trade or fishing It was a "win win" for them.
Ai know the first one is the French and Indian war
Scarcity is the fundamental problem facing all societies. It is the condition that results from society not having enough resources to produce all the things that people would like to have.
Germany had the urge to split its region between the Protestants in the north and the Catholics in the south because of the rising conflicts in these religious factions at the time of the "Age of Reformation." The continuous tensions between these two factions could rattle the political structure of Germany.
