Ancient damascus steel is really Wootz steel, not folded steel. What we call damascus steel is really folded steel and is not anywhere near the strength of Wootz.
Here's a couple links:
http://www.brisa.fi/wootz3.htmlhttp://metalrg.iisc.ernet.in/~wootz/heritage/WOOTZ.htmBTW - I believe a scimitar is the sword you are describing.
http://en.wikipedia.org/wiki/Scimitarhttp://www.tms.org/pubs/journals/JOM/9809/Verhoeven-9809.html -See sword in upper right corner