Australia: The Land Where Time Began
This was a supercontinent that is believed to have existed between 1100 and 750 Ma, when all the continental blocks of the earth were joined together in one massive landmass. There is little definite evidence for the existence of this supercontinent, but some evidence suggests its existence. It is believed by some that the global cooling, often referred to as Snowball Earth of the Cryogenian Period, that occurred about 700 Ma may have been a result of the breakup of Rodinia that began about 750 Ma. .