The Sword of Damocles is widely considered to be the first virtual reality (VR) and augmented reality (AR) head-mounted display (HMD) system. It was created in 1968 by hall of fame computer scientist Ivan Sutherland with the help of his student Bob Sproull.

The SWORD of Damocles.
The sword of Damocles.
"The Sword of Damocles?"
Stock Option Expense: The Sword of Damocles Revealed
Hepatitis B and renal transplantation: Securing the sword of Damocles
Al Capone, the Sword of Damocles, and the Police–Corrections Budget Ratio
The sword of Damocles: The psychosocial impact of familial spinocerebellar ataxia in South Africa
Carboplatin for stage I seminoma and the sword of Damocles
PROactive in patients with type 2 diabetes and previous myocardial infarction: swinging the sword of Damocles?
Developmental toxicity testing in the 21st century: the sword of Damocles shattered by embryonic stem cell assays?
Hepatitis B and renal transplantation: dangling the sword of damocles?
Atrial fibrillation in heart failure: The sword of Damocles revisited
Living beyond the Sword of Damocles: surviving childhood cancer