Corinth, or Korinth was a Greek city-state, on the Isthmus of Corinth, the narrow stretch of land that joins the Peloponnesus to the mainland of Greece. To the west of the isthmus lies the Gulf of Corinth, to the east lies the Saronic Gulf. Corinth is about 48 miles (78 km) southwest of Athens. The isthmus, which was in ancient times traversed by hauling ships over the rocky ridge on sledges, is now cut by a canal.                                                                       

The city was a major participant in the Persian Wars, offering 40 war ships in the sea Battle of Salamis under the admiral Adeimantos and 5,000 hoplites (wearing their characteristic Corinthian helmets) in the following Battle of Plataea but afterwards was frequently an enemy of Athens and an ally of Sparta in the Peloponnesian League. In 431 BC, one of the factors leading to the Peloponnesian War was the dispute between Corinth and Athens over the Corinthian colony of Corcyra (Corfu), which probably stemmed from the traditional trade rivalry between the two cities.

After the end of the Peloponnesian War, Corinth and Thebes, which were former allies with Sparta in the Peloponnesian League, had grown dissatisfied with the hegemony of Sparta and started the Corinthian War against it, which further weakened the city-states of the Peloponnese. This weakness allowed for the subsequent invasion of the Macedonians of the north and the forging of the Corinthian League by Philip II of Macedon against the Persian Empire. Philip's son Alexander the Great was the first general of the Hellenes. 

The Royal Corinthian Helm is a replica of the helm worn by the the Royal Guards of Corinthian nobility. These guards were the best warriors that Corinth had to offer, and were chosen to defend the rulers of the city-state. The helm is made of 18-gauge mild blackened steel, and is decorated with brass lions and dragons. and a beautiful white horse hair crest. A more impressive decorative piece of armor would be hard to find!