Complex sentence: Based on Lorentz' theory Albert Einstein then developed the theory of Special Relativity in 1905, which conclusively explained the aberration phenomenon, and he cited aberration as one of the experimental results which most influenced him.
Split into simpler sentences: Based on Lorentz' theory Albert Einstein then developed the theory of Special Relativity in 1905, which conclusively explained the aberration phenomenon. Einstein cited aberration as one of the experimental results which most influenced him.