IIRC, frames was originally a proprietary Netscape-only feature, at a time when the Netscape browser was proprietary, commercial, and did not support many platf

IIRC, frames was originally a proprietary Netscape-only feature, at a time when the Netscape browser was proprietary, commercial, and did not support many platforms, and many people therefore used other browsers and/or other platforms which did not support frames.