1994 Oregon Ballot Measure 16

Measure 16 of 1994 established the U.S. state of Oregon's Death with Dignity Act (ORS 127.800–995), which legalizes medical aid in dying (commonly referred to as physician-assisted suicide) with certain restrictions. Passage of this initiative made Oregon the first U.S. state and one of the first jurisdictions in the world to permit some terminally ill patients to determine the time of their own death.

Source: Wikipedia — 1994 Oregon Ballot Measure 16 (CC BY-SA 4.0)