Welcome to Eberron.
Eberron is placed in Khorvaire, a continent that was ruled by goblinoids of Dhakaan in ancient times. Humans are now the most populous race in Khorvaire, living primarily in the area known as the Five Nations. Southeast is Aerenal. Due south is Xen’drik, with Frostfell to the north.
The Last War officially ended two years ago, with the Treaty of Thronehold, as each of the Five Nations and most of the nations that broke off during the war officially became independent.
Two years prior to the end of the Last War, the nation of Cyre was destroyed in an incident known as the Day of Mourning. This event helped expedite the end of the Last War. Now, the region that was once Cyre is referred to as the Mournland and is the home of living spells, preserved dead bodies, and a militant sect of warforged led by one called the Lord of Blades whose avowed goal is the total domination of the continent by the warforged at the expense of all “flesh and blood” humanoids. Those in the Mournland do not heal naturally, and magical healing has no effect. For all these reasons, few people enter the region.