Khorvaire is considered the “main” continent of Eberron, as it is home to the most countries and the most diverse population of creatures and races. Today, it is thought by most to be the most influential continent on Eberron due to its constant conflicts and change.
While archeology and legend hint at Khorvairean influence for millenia before, the Dhakaani Empire is considered by most to be the first major civilization on the continent. Roughly 16,000 years ago, the goblin kingdoms united on Khorvaire to create the greatest goblin empire ever known. Until the Daelkyr War, the goblins ruled the continent for almost 10,000 years.
Three thousand years ago, the first humans arrived on Khorvaire from Sarlona, within five hundred years establishing what would become the Five Nations. Almost one thousand years ago (1YK, or “Year of the Kingdom”) these Five Nations combined under the rule of King Galifar I, establishing the kingdom of Galifar. This empire would itself stand until 894YK, when King Jarot passed, forcing his five offspring to come to blows and beginning The War, which lasts until this day.