June 14th is "Flag Day," which commemorates the adoption of the American flag. <script type='text/javascript' src='//z.cdn.turner.com/cnn/van/resources/2.1/scripts/van-widgets.js'></script> <div data-cnnvansinglewidget data-affiliate='gantdaily' data-videoid='van/ns-acc/2017/06/13/VAN-003TU_CNNA-ST1-100000000406536f' data-size='auto' data-autostart='true'></div>