Complex sentence: A New History of the Thirty Years War (London: Penguin, 2010), 787 as well as the deadliest European religious war in history, that took place in Central Europe between 1618 and 1648 and resulted in eight million casualties.
Split into simpler sentences: A New History of the Thirty Years War (London: Penguin, 2010), 787 as well as the deadliest European religious war in history. It took place in Central Europe between 1618 and 1648 and resulted in eight million casualties.