Toleration is the acceptance of an action, object, or person which one dislikes or disagrees with, where one is in a position to disallow it but chooses not to. It has also been defined as "to bear or endure" or "to nourish, sustain or preserve" or as "a fair, objective, and permissive attitude toward those whose opinions, beliefs, practices, racial or ethnic origins, etc., differ from one's own; freedom from bigotry" too. Toleration may signify "no more than forbearance and the permission given by the adherents of a dominant religion for other religions to exist, even though the latter are looked on with disapproval as inferior, mistaken, or harmful."
There is only one verb to tolerate and one adjective tolerant, but the two nouns tolerance and toleration have evolved slightly different meanings. Tolerance is an state of mind that implies non-judgmental acceptance of different lifestyles or beliefs, whereas toleration indicates the act of putting up with something that one disapproves of.
Historically, most incidents and writings pertaining to toleration involve the status of minority and dissenting viewpoints in relation to a dominant state religion. In the twentieth century and after, analysis of the doctrine of toleration has been expanded to include political and ethnic groups, LGBT individuals and other minorities, and human rights embodies the principle of legally enforced toleration.
The word tolerance was first used in the 15th century.
The word is derived from endurance and fortitude, used in the 14th century. According to the Online Etymology Dictionary, the word was first used to describe having permission from authorities in the 1530s.
As reported in the Old Testament, the Persian king Cyrus the Great was believed to have released the Jews from captivity in 539–530 BCE, and permitted their return to their homeland.
The Hellenistic city of Alexandria, founded 331 BCE, contained a large Jewish community which lived in peace with equivalently sized Greek and Egyptian populations. According to Michael Walzer, the city provided "a useful example of what we might think of as the imperial version of multiculturalism."
The Roman Empire encouraged conquered peoples to continue worshipping their own gods. "An important part of Roman propaganda was its invitation to the gods of conquered territories to enjoy the benefits of worship within the imperium." Christians were singled out for persecution because of their own rejection of Roman pantheism and refusal to honor the emperor as a god. In 311 CE, Roman Emperor Galerius issued a general edict of toleration of Christianity, in his own name and in those of Licinius and Constantine I (who converted to Christianity the following year).