Why do historians organize history thematically?

to highlight gaps between significant historical events

to illustrate examples of continuity over time

to demonstrate how much things change over time

to use a better system than chronology to organize history

to weave a historical narrative from a single point of view

In celtic mythology, one story involves macha, who was pregnant at the time she outraced the king’s horses on a wager. in norse history, freydis eiriksdottir was pregnant at the time that she single-handedly turned back the natives of vinland, who were at war with the norse. what do you think that pregnancy of these warrior women figured do prominently in mythology and folklore, as well as historical stories?