Two examples of religious effects on the people of the world, which are from opposite ends of the spectrum. One is a good use of people's time and resources - aid to our fellow human beings and the other is the Holy Wars, which took place in approximately 1080 AD.
In the brutal era of wars that tore Europe apart in the closing days of the first millennium AD, no period was more confusing, or more tragic, than the nearly two hundred years Europe spent locked in bitter fighting in the Middle East. This era, known as the Age of Crusades, would lead to some of the most atrocious acts and miserable failures ever made in the name of religion. The story of the Crusades actually begins centuries before the First Crusade was launched in AD 1096. …
