Period labels make an immense and continuous past easier to write about, study, and teach. They create manageable sections, although the developments grouped within them often overlap. Clear beginnings and endings are rare, so the placement of a boundary depends on subjective argument. Disputes about period names and dates concern historical emphasis as much as arithmetic. The joke about historians being bad at maths comes from imposing clean divisions on a past whose edges remain fuzzy.
Notable Point · 2:01-2:44
Why historians divide a continuous past into periods
Historians divide the past into periods to make it easier to write about, study, and teach. Overlapping developments rarely offer a single uncontested starting or ending date.