Asteroid Florence

Burckle Crater is a hypothesized impact site popularized by, among others, Dallas Abbott of Columbia University, as well as other members of the Holocene Impact Working Group.

Some scientists are investigating the possibility of a strike in the Indian Ocean that precipitated myths in more than hundred cultural stories of a great flood accompanying many days and nights of rain.

Another interesting proposal of the Holocene Impact Working Group is of an extra-terrestrial impact around 500 A.D. Evidence of tropical biological remains in Greenland ice core samples dating to this period align with the proposal that a strike in Australia may have been responsible. Historical records in England document that by 535 A.D. a mini ice age gripped the region.

Did an asteroid strike in Australia plunge Anglo-Saxon England into a mini ice-age?

http://www.dailymail.co.uk/sciencetech/article-1248518/Did-asteroid-strike-Australia-plunge-Anglo-Saxon-England-mini-ice-age.html#ixzz4sDv4lWee