water

The Suez Canal is completed under French supervision and becomes one of the world’s most important waterways.

The instability of a dam project near the town of Lorca in North Spain causes an inundation killing nearly 1000 people.

The treaty prohibits nuclear weapons tests or other nuclear explosions under water, in the atmosphere, or in outer space, but still permits underground nuclear tests.

The 1976 Barcelona Convention for Protection against Pollution in the Mediterranean Sea is established.