Euthanasia plug") is legal under some circumstances in many countries. Active euthanasia however is legal or de facto legal in only a handful of countries (e.g. Belgium, Canada, Switzerland) and is limited to specific circumstances and the approval of councilors and doctors or other specialists. In some countries such as Nigeria, Saudi Arabia and Pakistan, support for active euthanasia is almost non-existent. Like other terms borrowed from history, "euthanasia" has had different meanings depending on usage. The first apparent usage of the term "euthanasia" belongs to the historian Suetonius, who described how the Emperor Augustus, "dying quickly and without suffering in
Euthanasia the broader definition of "assisted suicide and termination of life on request". Euthanasia is categorized in different ways, which include voluntary, non-voluntary, or involuntary. Voluntary euthanasia is legal in some countries. Non-voluntary euthanasia (patient's consent unavailable) is illegal in all countries. Involuntary euthanasia (without asking consent or against the patient's will) is also illegal in all countries and is usually considered murder. As of 2006, euthanasia is the most active area of research in contemporary bioethics. In some countries there is a divisive public controversy over the moral, ethical, and legal issues of euthanasia. Passive euthanasia (known as "pulling the