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 Green March and the Western Sahara claim divide the lenses most sharply. The consensus and cultural readings treat Morocco’s 1975 push into the Sahara as the assertion of a claim rooted in centuries of loose but real allegiance networks and in the king’s religious duty, as Commander of the Faithful, to defend Moroccan territory. The revisionist reading treats the same event as a calculated act of state-building — a modern territorial expansion, framed in the language of decolonization, that a fragile monarchy used to secure domestic loyalty at a moment of real vulnerability. Same event, opposite readings of intent: sincere historic claim, or political engineering.
The durability of the dispute, half a century on, gets a third kind of explanation from the economic lens, which sets nationalism and religion aside and points instead to phosphate: Morocco and the territory it controls hold the world’s largest reserves, and no government controlling that wealth would easily relinquish it, whatever the underlying historical or religious argument. Consensus, revisionist, and economic historians can each explain why Morocco holds the territory today without needing to agree on why it went there in the first place.
On one point all four agree: the monarchy has been the single most continuous institution in Moroccan political life, surviving invasion, colonial rule, and the wave of uprisings that toppled or shook nearly every other government in the region after 2011. They part on why it has endured — an unbroken well of religious legitimacy (consensus, cultural), a coercive and adaptive state apparatus redeployed at each crisis (revisionist), or a geography and resource base that has always rewarded a strong, centralizing authority (economic).
Reference status: every work cited is verified and correctly attributed — Susan Gilson Miller, A History of Modern Morocco (2013); C.R. Pennell, Morocco Since 1830: A History (2000) and A Country with a Government and a Flag: The Rif War in Morocco, 1921–1926 (1986); Jacob Mundy & Stephen Zunes, Western Sahara: War, Nationalism, and Conflict Irresolution (2010); Toby Shelley, Endgame in the Western Sahara: What Future for Africa’s Last Colony? (2004); John Waterbury, The Commander of the Faithful: The Moroccan Political Elite (1970); Dale F. Eickelman, Moroccan Islam: Tradition and Society in a Pilgrimage Center (1976); M.E. Combs-Schilling, Sacred Performances: Islam, Sexuality, and Sacrifice (1989); Will D. Swearingen, Moroccan Mirages: Agrarian Dreams and Deceptions, 1912–1986 (1987). The bled al-makhzen / bled as-siba dichotomy used in the Consensus and Cultural sections is a long-standing but contested historiographical framework, developed in part by colonial-era ethnography and later scholars such as Ernest Gellner; it is presented here as an analytic convention, not settled fact. Combs-Schilling’s argument that royal ritual actively re-creates sacred kingship is an influential but interpretive anthropological thesis, likewise presented as such.