In general it was the "slum dwellers" and the "immigrants" who did not share in the prosperity of the late 1800s, since these people were paid very low wages and treated poorly.
The basis at the time before the French Revolution is the
following: Money and Title. The Three estates are the clergies, the nobles and
the commoners. The clergies are made up of rich and poor layman serving the Church.
The nobles refers to the monarch while the commoners are the ordinary rich
people in France.
A primary source comes from a first-hand witness's point of view which makes the information from that source more valid than a secondary.
The right answer for the question that is being asked and shown above is that: "<span>the calculated use of power adherence to international law " </span>Germany and Italy became unified under a policy of Realpolitik, a german expression that means that the goals of the government policy should be accomplished by <span>the calculated use of power adherence to international law </span>