More than 90% of wildfires are caused by human activity, but other causes include lighting, drought, wind and changing weather conditions, underground coal fires, and even volcanic activity. Wildfire
Psychologists and other health professionals, some working with police or militaries, explore why some people get post-traumatic stress disorder while others, who may encounter equally horrible situat
The historian Polybius (ca. 200–118 bce) was born into a leading family of Megalopolis in the Peloponnese and served the Achaean League in arms and diplomacy for many years. From 168 to 151 he was hel
