In 
						
						the year 536 AD, a mysterious event plunged the world into 
			darkness for a year and a half. 
						 
						
						Constantinople writers of 
			the time described the sun as dimmed and blotted out, causing crop 
			failures, famine, and social upheaval across the globe.
Recent research suggests that a massive volcanic eruption, or series 
			of simultaneous eruptions may have caused the catastrophic event, 
			which created a volcanic winter and drastically changed the Earth's 
			climate. 
						 
						
						The event is suggested to 
			have been 
						everything from the collapse of empires to the 
						'Plague of 
			Justinian.' 
						 
						
						
						However, the source of the eruption remains unknown, 
						leaving scientists to unravel the mystery of one of the 
						most significant environmental events in human history.