<span>This would be the incest taboo. Since exogamy is the concept of marrying outside one's own circle, the incest taboo and the general prohibition against marrying (or having relationships) within one's family or close circle helps to make sure that people propagate their genetics and characteristics as far as possible.</span>
Marble, Roman copy after a Greek original from ca. 430 BCE. The Athenian democracy of Cleisthenes<span>and </span>Pericles<span> was based on freedom, through the reforms of Solon, and equality (isonomia), introduced by </span>Cleisthenes<span> and later expanded by Ephialtes and</span>Pericles<span>.</span>
