Year 536 Was the Worst Year to Be Alive - What Happened?

When the sunspots in the southern hemisphere exceed those in the northern hemisphere (of the sun) its time to rock and roll....Earthquakes and Volcanos

https://www2.hao.ucar.edu/hao-science/science-feature/solar-cycle-variability-induced-title-angle-scatter-babcockl-leighton

Read the caption under the first image. That will explain how the year 536 was the longest duration of south exceeding the north, the integration of the individual deltas. Note in C4 about year 503 there was a higher peak but it was quite isolated.

We have long spoke of how fast moving space rocks cause earthquakes and therefore vulcanism even if they are not large. The speed matters most.

Story below copied and not verified by me, but it is interesting.

In 535/6 AD a piece of comet (possibly from Halley's Comet) passed over Britain, impacting or exploding over the Norwegian Sea . It would have scorched the land, killed the people and other life in most of Britain except for the valleys in Wales and Scotland. About 450 to 500 years later after the wildlife had recovered, the sparsely populated area (now called England) was resettled (not invaded) by the Angles, Saxons and Jutes, from the area now called Demark and northern Germany.

The Jutes are probably the origin of "Judaeans", (now called Jews) of the plagiarised Bible stories.
England (Angle land) got its name from the Angle settlers, originally a fishing people (anglers).