Kingdom of Grunkeldunk (Ancient)

The Ancient Kingdom of Grunkeldunk is by far the longest-lived Empire in the known world. Its ruling dynasty managed the country for over four millenia with only minimal change of succession line. The Kingdom was established in 3642 BC by King Argrancil the Old, and enjoyed its golden era in the late 30th and early 29th century BC. From then on, it rose to become the Continent's southern sentinel, having survived a dozen invasions and dark ages and keeping up pressure on the southern countries until its ultimate demise in 474, following the sudden Siberian Invasion. It was, from its establishment through to its end, the natural opponent of consequently the Oomnosian Empire, the Ancient Grombolistanian Empire and the Northern-Oomnosian Empire. It was federally incorporated into the Great-Smurcian empire in the last three centuries BC, and it became a beacon of civilisation following the Great-Smurcian Empire's fall.