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Cryptozoic eon
Also called the Precambrian period, the Cryptozoic eon is the earliest geological era. It started at the beginning of time and lasted until about 590 million years ago.

Cryptozoic eon
©Victor Kapas
Word of the day
Hudson's Bay Company >> Canada’s oldest merchandising company. In the 17th Century, the Company dominated the fur trade and played an important role in bringing colonial settlement to the West.
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