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The renaissance of General Relativity witnessed considerable progressregarding both understanding and justifying Einstein's equations. Both generalrelativists and historians of the subject tend to share a view, GeneralRelativity exceptionalism. But does some of the renaissance progress inunderstanding and justifying Einstein's equations owe something to particlephysics egalitarianism? If so, how should the historiography of gravitation andEinstein's equations reflect that fact?  The idea of a graviton mass has a 19th century Newtonian pre-history inNeumann's and Seeliger's long-distance modification of gravity, which(especially for Neumann) altered Poisson's equation to give a potential$e^{-mr}/r$ for a point mass, improving convergence for homogeneous matter.Einstein reinvented the idea before introducing his faulty analogy with$\Lambda$. This confusion was first critiqued by Heckmann in the 1940s (withouteffect) and by Trautman, DeWitt, Treder, Rindler, and Freund et al. in the1960s, and especially more recently by Sch\"{u}cking, but it has misled North,Jammer, Pais, Kerszberg, the Einstein Papers, and Kragh. The error is difficultto catch if one has an aversion to perturbative thinking, but difficult to makeif one thinks along the lines of particle physics. The $\Lambda$-graviton massconfusion not only distorted the interpretation of Einstein's theory, but alsoobscured a potentially serious particle physics-motivated rivalry (massless vs.massive spin 2). How could one entertain massive spin 2 gravity if $\Lambda$ isthought already analogous to the Neumann-Seeliger scalar theory?  Historiography, like physics, is best served by overcoming the divide betweenthe two views of gravitation.

Cosmological Constant $\Lambda$ vs. Massive Gravitons: A Case Study in General Relativity Exceptionalism vs. Particle Physics Egalitarianism