When you study the history of how that worthless pagan religion of islam was finally defeated and drove out of Europe for good, no other date is more important than 1683 and the Battle of Vienna.
With Europe currently under yet another islamic invasion, it is INTEGRAL that Christians the world over learn from history so they can yet be victorious again in driving these murdering pagan hate peddlers out of their lands for good.
Now although the prelude from History Time is rather lengthy (42 minutes), I highly suggest you watch it in order to get a “Big Picture” snapshot of Europe in the 17th century…things were not pretty.