optics
... that optics began with the development of lenses by the ancient Egyptians and Mesopotamians ?
... that <b id="mwFG8"><a href="./Optics" id="mwFHA" rel="mw:WikiLink" title="Optics">optics</a></b> began with the development of <a class="mw-redirect" href="./Lens_(optics)" id="mwFHE" rel="mw:WikiLink" title="Lens (optics)">lenses</a> by the <a href="./Ancient_Egypt" id="mwFHI" rel="mw:WikiLink" title="Ancient Egypt">ancient Egyptians</a> and <a href="./Mesopotamia" id="mwFHM" rel="mw:WikiLink" title="Mesopotamia">Mesopotamians</a> <i id="mwFHQ">(<a href="./Dispersive_prism" id="mwFHU" rel="mw:WikiLink" title="Dispersive prism">dispersive prism</a> pictured)</i>?