It’s funny when you think about the fact that the Halley’s Comet is named after an English astronomer who lived in the 17th-18th Centuries, despite having been spotted and observed for over two millennia. In fact, this astronomer is considered the discoverer of the comet, even though he certainly wasn’t the first human to take note of it.
The astronomer in question is the Englishman Edmond Halley, who was also a mathematician and physicist in addition to being an astronomer. He succeeded English astronomer John Flamsteed as the second Astronomer Royal in Britain in 1720.