<?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">Alexandrian</topic></authority><related type="broader"><topic>Near Eastern</topic></related> <note xml:lang="en"><![CDATA[ Period and culture from 3rd-1st centuries BCE, known for great advances in mathematics, science, astronomy, optics, and mechanics, born in  Alexandria, Egypt but spread to Greece and beyond. ]]></note></mads>