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jan 1, 1664 - The Iris enters the Solar System

Description:

(There is not much information to back up the claim that the Iris first arrived in 1664. There is none at all, actually. The only thing indicative of it's time of arrival is Jupiter's Great Red Spot, which was first observed on May 9th, 1664 by Robert Hooke.)

Added to timeline:

Date:

jan 1, 1664
Now
~ 362 years ago

Images: