document.write('<span class="PubAdAI" id="16C80643-7A31-4830-A106-2E2E49A366A1">');PubMatic.pmAdInfo.setNetworkId('0',165,0,3.000000,0.000000,'',0.000000,'16C80643-7A31-4830-A106-2E2E49A366A1');var str = '%3Cscript%20type%3D%22text%2Fjavascript%22%3E%0Aif%20%28%21window.OX_ads%29%20%7B%20OX_ads%20%3D%20%5B%5D%3B%20%7D%0AOX_ads.push%28%7B%20%22auid%22%20%3A%20%22540752082%22%2C%22url%22%3A%22https%3A%2F%2Fwww.britannica.com%2F%22%2C%20%22ref%22%3A%22britannica.com%22%7D%29%3B%0A%3C%2Fscript%3E%0A%3Cscript%20type%3D%22text%2Fjavascript%22%3E%0Adocument.write%28%27%3Cscr%27%2B%27ipt%20src%3D%22%2F%2Fstreamlyn-d.openx.net%2Fw%2F1.0%2Fjstag%22%3E%3C%5C%2Fscr%27%2B%27ipt%3E%27%29%3B%0A%3C%2Fscript%3E%0A%3Cnoscript%3E%3Ciframe%20id%3D%224d0dc3ed83%22%20name%3D%224d0dc3ed83%22%20src%3D%22%2F%2Fstreamlyn-d.openx.net%2Fw%2F1.0%2Fafr%3Fauid%3D540752082%26url%3Dhttps%3A%2F%2Fwww.britannica.com%2F%26ref%3Dbritannica.com%26cb%3DINSERT_RANDOM_NUMBER_HERE%22%20frameborder%3D%220%22%20scrolling%3D%22no%22%20width%3D%22360%22%20height%3D%22300%22%3E%3Ca%20href%3D%22%2F%2Fstreamlyn-d.openx.net%2Fw%2F1.0%2Frc%3Fcs%3D4d0dc3ed83%26url%3Dhttps%3A%2F%2Fwww.britannica.com%2F%26ref%3Dbritannica.com%26cb%3DINSERT_RANDOM_NUMBER_HERE%22%20%3E%3Cimg%20src%3D%22%2F%2Fstreamlyn-d.openx.net%2Fw%2F1.0%2Fai%3Fauid%3D540752082%26cs%3D4d0dc3ed83%26url%3Dhttps%3A%2F%2Fwww.britannica.com%2F%26ref%3Dbritannica.com%26cb%3DINSERT_RANDOM_NUMBER_HERE%22%20border%3D%220%22%20alt%3D%22%22%3E%3C%2Fa%3E%3C%2Fiframe%3E%3C%2Fnoscript%3E';
document.writeln(decodeURIComponent(str));
document.write('<iframe name="pbeacon" frameborder="0" allowtransparency="true" hspace="0" vspace="0" marginheight="0" marginwidth="0" scrolling="no"  width="0"  height="0" style="position:absolute;top:-20000px;" src="https://aktrack.pubmatic.com/AdServer/AdDisplayTrackerServlet?operId=1&pubId=148800&siteId=600199&adId=2261523&adType=3&adServerId=165&kefact=3.000000&kaxefact=3.000000&kadNetFrequecy=0&kadwidth=300&kadheight=250&kadsizeid=0&kltstamp=1571866470&indirectAdId=2024825&adServerOptimizerId=1&ranreq=0.715627778088674&kpbmtpfact=0.000000&dcId=2&tldId=0&passback=11&svr=ADS44332U&ekefact=ZsewXZOwCgBXch4tryCz-RGyGhHUCFteK7H1RehqVBXLjBd4&ekaxefact=ZsewXcCwCgAKn2E32VlbprANbTaOJDES-Grangvj3W7dCU3e&ekpbmtpfact=ZsewXdawCgCA3nx_vsrMsjiJ48DzKxDs7YoI8pxhZMuBLbCj&enpp=ZsewXeqwCgBYOYv5-mzXCmCWH9kEt7si8zahC55ntSyA0DyT&crID=0&campaignId=0&isRTB=0&imprId=16C80643-7A31-4830-A106-2E2E49A366A1&oid=16C80643-7A31-4830-A106-2E2E49A366A1&cntryId=232&domain=britannica.com&pageURL=www.britannica.com&sec=1"> </iframe>');
document.write('<!-- PubMatic Ad Ends --> </span>');/* ADS44332U:705067E2-031F-4D83-9257-2EF9C80AD7D3 *//* etsdiff:2160 *//* u_ts:2019-10-23%2021%3A34%3A30, u_tz:0 *///