The Chalcolithic was an archaeological period characterized by the increasing use of smelted copper. It followed the Neolithic and preceded the Bronze Age. It occurred at different periods in different areas, but was absent in some parts of the world, such as Russia, where there was no well-defined Copper Age between the Stone and Bronze Ages. Stone tools were still predominantly used during this period.

The Chalcolithic temple of Ein Gedi is a Ghassulian public building dating from around 3500 BCE. It lies on a scarp above the oasis of Ein Gedi, on the western shore of the Dead Sea, within modern-day Israel. Archaeologist David Ussishkin has described the site as "a monumental edifice in terms of contemporary architecture".

The Chalcolithic period of Prehistoric Europe lasted roughly from 5000 to 2000 BC, developing from the preceding Neolithic period and followed by the Bronze Age.