On June 8, 570, the religion of Islam was founded in Mecca.
The Transit of Venus is an event much like an eclipse, where the planet Venus crosses between the Sun and Earth. In addition to this year, the Transit will re-occur again on 6 June, 2012. Transits of Venus are associated with volcanic eruptions. For example, the last Transit of Venus occurred back in 1882, and was followed shortly afterwards by the eruption of the Krakatau volcano, the shockwave of which was mistaken as an earthquake for miles. As a result, particle dust blocked out enough harmful solar radiation to cool the planet by 1.2 degrees in 1883.
Much more found at:
http://www.gateway.ualberta.ca/view.php?aid=2768