The modern territory of Armenia has been settled by human groups from the Lower Paleolithic to modern days. The first human traces are supported by the presence of Acheulean tools, generally close to the obsidian outcrops more than 1 million years ago. Middle and Upper Paleolithic settlements have also been identified such as at the Hovk 1 cave. The Armenian Highland finally shows traces of settlement from the Neolithic era. The Shulaveri-Shomu culture of the central Transcaucasus region is one of the earliest known prehistoric culture in the area, carbon-dated to roughly 6000 - 4000 BC. Another early culture in the area is the Kura-Araxes culture, assigned to the period of ca. 3300 - 2000 BC, succeeded by the Trialeti culture (ca. 3000 - 1500 BC).
The most recent and important excavation is at the Nor Geghi 1 Stone Age site in the Hrazdan river valley. Thousands of 325,000 year-old artifacts show that human technological innovation occurred intermittently throughout the Old World, rather than spreading from a single point of origin (usually hypothesized to be Africa), as was previously thought.
In the Ararat plain, the sites of Aknashen and Aratashen are known to belong to the Neolithic period.
The main object of early Assyrian incursions into Armenia was to obtain metals. The iron-working age followed that of bronze everywhere, opening a new epoch of human progress. Its influence is noticeable in Armenia, and the transition period is well marked. Tombs whose metal contents are all of bronze are of an older epoch. In most of the cemeteries explored, both bronze and iron furniture were found, indicating the gradual advance into the Iron Age.