Answer:
OD. A formal agreement between two or more nations.
Explanation:
<u>A treaty is a formal agreement that is signed between two or more nations, according to the parties involved in that particular issue</u>. It is a form or sign of a deal where the parties involved agreed to come to terms and signify the start of a peaceful co-operation between them.
The signing of treaties has been one of the most significant aspects of many events in the history of the world. Numerous wars and discords were solved with signing treaties, and also allows for peace and co-operation. These treaties contain pacts, deals, convention, and the participation of the involved parties in making peaceful efforts to progress, away from violent means.
Some of the more famous treaties in the world's history are The Treaty of Versailles in 1919, the Treaty of Paris in 1783, the Charter of the United Nations Organization in 1945, etc.
In the year 507 B.C., the Athenian leader Cleisthenes introduced a system of political reforms that he called demokratia, or “rule by the people” (from demos, “the people,” and kratos, or “power”). It was the first known democracy in the world.
(From History.com)
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<span>Lord owned the land, or manor which was an agriculture estates that a lord ran and serfs farmed in.</span>
Stalin unified the Soviet Union after the death of Lenin, although it should be noted that this "unification process" involved mass killings and deportations of people Stalin deemed to be enemies of the state.