[nohuck13]

Nope, at least not as a standard. The original DOM spec is dated 1 October 1998.

https://www.w3.org/TR/1998/REC-DOM-Level-1-19981001/

[shiomiru]

Notably though, in 1997 Netscape 4 already had document.layers and IE4 document.all, two incompatible precursors to the DOM.

Some info about the LAYER API (which Netscape eventually killed, as the MS/W3C DOM prevailed):

http://web.archive.org/web/19971015223701/http://developer.n...

Also, a DOM compatibility guide can be found here:

http://www.dannyg.com/dl/JSB4RefPoster.pdf