jan 1, 2215 BC - Hale-Bopp Comet
Description:
According to astronomers, the Hale-Bopp comet, discovered in the modern age in 1995, likely made its previous perihelion in roughly the year 2215 BCE. The comet, which is the brightest ever measured, would have been visible to the naked eye for months, and likely would have caused quite a stir in the ancient world. Unfortunately, no specific ancient records have been found relating to it.https://link.springer.com/article/10.1023/A:1006268813208
Added to timeline:
Date:
jan 1, 2215 BC
Now
~ 4243 years ago