Mapping out Halley’s Comet appearances throughout history has always been a daunting task partly due to the scant records - earliest reliable sighting is around 240 BC, confirmed by Chinese observers. Yet, scientists Daniel W. Graham and Eric Hintz in the Journal of Cosmology claim that the Greeks were the first to cite its appearance Specifically, they refer to ancient authors who mention a certain meteorite said to have fallen in northern Greece in 466-467 BC.

For example, Anaxagoras theorised about shooting starts whereas Aristotle mentions that when the meteorite fell, a comet was visible- obviously Halley’s Comet, visible for 75 days in 466 BC. If the above is valid, then this means that the first sighting of the Comet gets pushed back 226 years!