Fresnel’s (Dragging) Coefficient as a Challenge to 19th Century Optics of Moving Bodies -- Poincaré’s Relativistic Theory of Gravitation -- Standing on the Shoulders of a Dwarf: General Relativity—A Triumph of Einstein and Grossmann’s Erroneous Entwurf Theory -- Before the Riemann Tensor: The Emergence of Einstein’s Double Strategy -- A Conjecture on Einstein, the Independent Reality of Spacetime Coordinate Systems and the Disaster of 1913 -- Einstein and the Principle of General Relativity, 1916–1921 -- Einstein and the Problem of Motion: A Small Clue -- A Note on General Relativity, Energy Conservation, and Noether’s Theorems -- Weyl vs. Reichenbach on Lichtgeometrie -- Dingle and de Sitter Against the Metaphysicians, or Two Ways to Keep Modern Cosmology Physical -- George Gamow and the ‘Factual Approach’ to Relativistic Cosmology -- George McVittie, The Uncompromising Empiricist -- False Vacuum: Early Universe Cosmology and the Development of Inflation -- Hilbert’s “World Equations” and His Vision of a Unified Science -- Einstein, Kaluza, and the Fifth Dimension -- Unified Field Theory: Early History and Interplay Between Mathematics and Physics -- Is Quantum Gravity Necessary? -- Einstein in the Daily Press: A Glimpse into the Gehrcke Papers -- Syracuse: 1949–1952 -- A Biased and Personal Description of GR at Syracuse University, 1951–1961.