<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31312536</termId><termName>Middle Iron Age</termName><termType>PT</termType><termNote><![CDATA[ Refers to a phase of Iron Age culture marked by technological and social developments, including carburized iron or steel. ]]></termNote><termCreatedDate>2026-03-30 20:24:12</termCreatedDate><relation><relationType>UF</relationType><termId>31312537</termId><termName>Iron Age, Middle</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31302005</termId><termName>Iron Age</termName><termType>PT</termType></relation></term>  </Zthes>