Linked from
The 201 pages that link to General relativity, each with the reason it gives.
Gravitational constantRelated: Its field equations retain G as the coupling constant for gravity.
InertiaNarrower topic: It extends the discussion of inertial motion to curved spacetime and gravity.
ManifoldRelated: Its spacetime is modeled as a four-dimensional Lorentzian manifold.
Coordinate chartRelated: Spacetime charts express the metric and physical fields locally.
CurvatureRelated: Spacetime curvature encodes gravitational effects in the theory.