San Marino was the first country to abolish the death penalty in 1865.

Lethal injection is the most common method of execution in the United States, accounting for over 80% of executions.

China has the highest rate of executions per capita, with an estimated 2,400 executions in 2021.

Capital punishment and the death penalty are synonymous terms.

There are a variety of arguments in favor of the death penalty, including deterrence, retribution, cost-effectiveness, and closure for victims' families.

There are a variety of arguments against the death penalty, including its cruelty, its irreversibility, its lack of deterrent effect, and its disproportionate application to minorities and the poor.

In Gregg v. Georgia (1976), the Supreme Court upheld the constitutionality of the death penalty, ruling that it is not cruel and unusual punishment.

In Roper v. Simmons (2005), the Supreme Court held that the death penalty is unconstitutional for juveniles, ruling that it is cruel and unusual punishment.

In Atkins v. Virginia (2002), the Supreme Court held that the death penalty is unconstitutional for people with intellectual disabilities, ruling that it is cruel and unusual punishment.

As of 2023, 27 states in the United States have abolished the death penalty.

The Innocence Project is a non-profit organization that works to exonerate innocent people who have been wrongly convicted, primarily through DNA testing.

As of 2023, over 200 people have been exonerated from death row in the United States, primarily through DNA testing.

The National Coalition to Abolish the Death Penalty is a coalition of organizations that work to abolish the death penalty in the United States.

Iceland has the lowest rate of executions per capita, with no executions recorded since 1874.