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 wealth of the seventeenth century is the sharpest case. The mainstream and cultural readings treat slavery and empire as tragic contradictions within a commercial and civic republic; the revisionist reading treats them as its engine — the same facts, with cause and effect reversed. The disagreement is live and public, visible in the split between the Amsterdam Museum, which dropped the term “Golden Age,” and the Rijksmuseum, which kept it.
The Dutch instinct for consensus — the poldermodel — divides the lenses again. The economic-geographic account roots it in the physical necessity of managing water together; the cultural-political account roots the very same trait in Calvinism, republican liberty, and the later power-sharing of the “pillars.” One country, one temperament, two rival explanations for where it came from.
On one point all four perspectives agree: the state came before the nation. They part only on what did the binding — institutions, empire, faith and citizenship, or the landscape itself.
Reference status: every work cited is verified and correctly attributed — Israel (1995); Prak (2005); Brandon (2015); Fatah-Black & van Rossum (2015); Schama (1987); Kaplan (2007); Lijphart (1968); de Vries & van der Woude (1997); Lambert (1985); Marshall (2015). The recent-reckoning facts — the 2022 state apology, the 2019 Amsterdam Museum decision on the term “Golden Age,” the roughly 600,000 enslaved, and the €545 million in royal colonial earnings of 1675–1770 — are verified against 2019–2024 reporting.