Thanks (sort of) to the Wikipedia for the list of “what happened on this day” - depressing really

79 Mount Vesuvius erupted, burying the cities of Pompeii, Herculaneum and Stabiae with volcanic ash

410 The Visgoths under Alaric sacked Rome

1572 St Bartholemew’s Day Massacre: a massacre of Huguenots began. An estimated 70,000 people were killed in France in the following weeks.

Of course if had not been for 1572, my son and daughter would have not have been born as their mother is descended from a Huguenot refugee; the threads and interactions of history.