View source for The Black Mesa Incident

On 15 July 1997, a resonance cascade occurred at the Black Mesa Research Facility in New Mexico. The cascade was caused by an accident during a routine experiment carried out by the facility's Anomalous Materials lab. Theoretical physicist [[Gordon]] Freeman was tasked with inserting a Xen crystal into the device, whose purpose was not yet decided by those creating it.

<blockquote>"What does our device do?"

"Haven't decided yet."</blockquote>The incident