Argos occupies a fertile plain beneath the hills of Aspis and Larisa in the northeastern Peloponnese. Archaeological evidence on Aspis shows settlement by the late Neolithic period, followed by an important Middle Bronze Age community and a Mycenaean town and cemetery on the lower slopes. Later Greeks regarded Argos as one of their oldest cities and connected it with legendary rulers including Inachus, Danaus, and Diomedes. Its position among productive fields and routes linking Corinth, Arcadia, and the Argolic Gulf supported unusually long urban continuity.

After the collapse of Mycenaean palace society, Argos emerged as a leading Dorian center. It flourished during the Geometric and Archaic periods, becoming renowned for bronze working and for a school of sculpture later associated with Polykleitos and his influential study of ideal proportions. King Pheidon was remembered as an ambitious early ruler, although traditions about his dates and achievements conflict. Competition with Sparta repeatedly limited Argive power, yet the city maintained a distinct identity, sometimes aligning with Athens and other opponents of Spartan dominance.

The ancient civic center developed between the two hills. Its agora contained stoas, temples, a council house, athletic facilities, and monuments accumulated over centuries. A vast theater, cut into Larisa’s eastern slope during the Hellenistic age, eventually held large audiences for drama, music, and political gatherings. Nearby sanctuaries honored Apollo, Aphrodite, and other deities. Argos also controlled the Heraion outside the city, an important sanctuary of Hera. Roads and cemeteries connected the urban center with Mycenae, Tiryns, and other communities across the plain.

Argos joined the Achaean League before becoming part of the Roman world in 146 BCE. Roman patrons reshaped the city with baths, an odeon, aqueducts, fountains, and alterations to the theater, including accommodations for spectacles involving water. Destructive incursions in the third and fourth centuries CE damaged public buildings, but occupation continued. Early Christian churches appeared as older civic spaces changed function. Byzantine, Frankish, Venetian, and Ottoman powers later contested the region, often using the fortified height of Larisa while the lower town endured below.

Systematic excavation has revealed only portions of a city repeatedly rebuilt on the same ground. The archaeological zone around the agora and theater displays Greek and Roman monuments beside later churches and reused masonry, while finds are interpreted through the local museum and ongoing research. Argos matters less as a ruin frozen in one celebrated century than as a place whose residents continually adapted an ancient urban landscape. Prehistoric settlement, classical rivalry, Roman renewal, Christian transformation, and the modern city remain closely layered across the plain.