Not to be confused with Démarche.
In governance, sortition (also known as allotment or demarchy) selects political officials as a random sample from a larger pool of candidates. The logic behind the sortition process originates from the idea that “power corrupts.” Most empirical evidence from ancient time to ours, points to this conclusion. For that reason, when the time came to choose individuals to be assigned to empowering positions, the ancient Athenians often resorted to choosing by lot. In ancient Athenian democracy, sortition was therefore the traditional and primary method for appointing political officials, and its use was regarded as a principal characteristic of true democracy.
Today, sortition is commonly used to select prospective jurors in common law-based legal systems and is sometimes used in forming citizen groups with political advisory power (citizens' juries or citizens' assemblies).
The following is a brief history of sortition's implementation, as it applies specifically to governance, and (when specified) the judiciary system.
Athenian democracy developed in the 6th century BC out of what was then called isonomia (equality of law and political rights). Sortition was then the principal way of achieving this fairness. It was utilized to pick most of the magistrates for their governing committees, and for their juries (typically of 501 men). Aristotle relates equality and democracy:
Democracy arose from the idea that those who are equal in any respect are equal absolutely. All are alike free, therefore they claim that all are free absolutely... The next is when the democrats, on the grounds that they are all equal, claim equal participation in everything.
It is accepted as democratic when public offices are allocated by lot; and as oligarchic when they are filled by election.
In Athens, "democracy" (literally meaning rule by the people) was in opposition to those supporting a system of oligarchy (rule by a few). Athenian democracy was characterised by being run by the "many" (the ordinary people) who were allotted to the committees which ran government. Thucydides has Pericles make this point in his Funeral Oration: "It is administered by the many instead of the few; that is why it is called a democracy."