Capital punishment was widely applied in ancient times; it can be found (c.1750 BC) in the Code of Hammurabi. From the fall of Rome to the beginnings of the modern era, capital punishment was practiced throughout Western Europe. The modern movement for the abolition of capital punishment began in the 18th cent. with the writings of Montesquieu and Voltaire, as well as Cesare Beccaria 's Essay on Crimes and Punishments (1764). In Great Britain, Jeremy Bentham was influential in having the number of capital crimes reduced in the 18th and 19th centuries. Some of the first countries to abolish capital punishment included Venezuela (1863), San Marino (1865), and Costa Rica (1877).
As of 2004, 81 countries had entirely abolished the death penalty, including the members of the European Union. Some other countries retained capital punishment only for treason and war crimes, while in others, death remained a penalty at law, though in practice there had not been any executions for decades. Among countries that retained the death penalty for ordinary crimes were many in the Caribbean, Africa, and Asia. The United States and China were believed to impose capital punishment most frequently.
Since the 1970s almost all capital sentences in the United States have been imposed for homicide. There has been intense debate regarding the constitutionality, effect, and humanity of capital punishment; critics charge that executions are carried out inconsistently, or, more broadly, that they violate the "cruel and unusual punishment" provision of the Eighth Amendment. Supporters of the death penalty counter that this clause was not intended to prohibit executions. The Eighth Amendment to the US Constitution states that people convicted of crimes should not be subject to excessive bail or fines, and that authorities may not inflict 'cruel and unusual punishments'. This amendment has been cited as an......