Not a fifth lens, but the point the whole engine exists to make: historians describe the same country differently because they weigh its causes differently.
The sharpest dispute concerns the 1153 conversion itself. The consensus and cultural readings treat it as a sudden, total, single-stroke event — one king, one visiting scholar, one hinge on which the whole civilization turned overnight. The revisionist reading treats the same event as the visible cap on a longer, gradual process of contact with Muslim traders, later compressed into a clean legitimizing story by court chroniclers serving the new dynasty. The facts of the event are not seriously disputed; what is argued over is how much of the “instant conversion” story is history and how much is dynastic myth-making.
The British protectorate’s light touch divides the lenses in a different way. The consensus and cultural accounts read it as evidence of genuine respect for Maldivian sovereignty and institutions. The economic-geographic and revisionist accounts read the identical fact as calculated indifference: the islands simply were not rich enough to be worth the cost of direct rule. Same policy, opposite motives assigned to it.
On one point all four agree: geography — isolation, dispersal, a location astride ancient trade routes — has shaped Maldivian history at every stage without exception. They part on what that geography actually did. The consensus and economic readings treat it as a protector, a passive shield that preserved an already-unified people. The revisionist reading treats the same remoteness as an obstacle to be actively, repeatedly overcome by rulers working to bind a scattered population into one nation — protection and fragmentation, drawn from the identical map.