<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">backed blades</topic></authority><related type="broader"><topic>cutting tools</topic></related><variant type="other"><topic>backed blade</topic></variant><variant type="other"><topic>blades, backed</topic></variant> <note xml:lang="en"><![CDATA[ Terminology used by prehistorians for a class of microlithic blades with one edge blunted by a secondary retouch. It is assumed that this was so that they could be held more easily. Backed blades first appeared in the early Upper Paleolithic. ]]></note></mads>