It mentions it in this way right in the second paragraph of the intro
"ECMAScript is based on several originating technologies, the most well-known being JavaScript (Netscape) and JScript (Microsoft). The language was invented by Brendan Eich at Netscape and first appeared in that company's Navigator 2.0 browser."
https://raw.githubusercontent.com/tc39/ecma262/master/spec.html
109th 2778 days ago. link 1 point ▲ ▼