The Terramian Calendar is a system of reckoning time used primarily by the shorter-lived races of Terram. It is divided into three Ages that mark significant events in the history of Terram. The first age is the Shattered Age, which began with the cataclysmic event that separated Terram from the ancient supercontinent of Tertan. The second age is the Replenishing Age, which began with the arrival of godly powers in the world and the rise of The Raven Queen, the first mortal to claim godhood. The third age is the Divided Age, which began with a catastrophic event that split Terram into a northern and southern region by The Great Rift.
Each age of the Terramian Calendar lasts from 400 to 2000 years, and the current year is 780tDa. This calendar is commonly used by humans, halflings, and other shorter-lived races who do not have as long a historical perspective as the elder races of Terram.