Although the idea of <u>parole</u> had been developed in Australia and Ireland in the 1850s and instituted at the Elmira Reformatory in 1876, not until the mid-1920s did this practice become readily accepted and implemented throughout the United States.
Explanation:
Parole came late in the United States and it was influenced by Australian system of law. Parole was granted by a parole board in each institution it was applied.
To have parole is necessary to serve more than half of the sentence, if the convicted person is a repeat felon, and one third if he is not a repeat felon and has a good record (case of special conditional release). Repairing the damage caused by the infraction, when possible (in practice, very rare).
The United Nations decided that they needed to have a peace-keeping force, a middle man, and treaties, so that they could try to stop wars from happening.