World Environment Day was established in **1972** by the United Nations at the Stockholm Conference on the Human Environment. One year later, in **1973** the first WED was held with the theme Only One Earth . Since then, the annual event has helped both celebrate the planet and put a spotlight on the perils it is facing.
Here is a list of websites that discuss The First World Environment Day Was Held In Which Year?:
- [Wikipedia](https://en.wikipedia.org/wiki/World_Environment_Day)
- [United Nations](https://www.un.org/en/observances/environment-day/background)
- [Firstpost](https://www.firstpost.com/world/world-environment-day-know-date-theme-history-and-significance-10750371.html)
- [UNEP](https://www.unep.org/news-and-stories/story/five-decades-world-environment-day-continues-shape-global-movement)
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