525 CY

World of Greyhawk Timeline • Common Era • Age of Great Sorrow
520	521	522	523	524	525 CY	526	527	528	529	530
In other reckonings: 945 SE • 1169 OR • 1329 OL • 1933 TC • 2675 FT • 3184 BH • 4987 OC • 6040 SD

Events

Tenser born in the city of Fax. (Return of the Eight p.58)
A mine collapses near Diamond Lake, Cairn Hills. Over 300 miners die in the disaster.^{[citation needed]}