>Relativistic effects weren't known to be reality at the time this theory was proposed. Umnn, Michelson–Morley and Maxwell equations were enough experimental e

>Relativistic effects weren't known to be reality at the time this theory was proposed. Umnn, Michelson–Morley and Maxwell equations were enough experimental evidence before Einstein. Einstein work was reconciling Mechanics to confirm with electromagnetism, and not the other way round. EDIT: Not to say there isn't some physics theory developed independent of experiments. But relativity is not a good candidate.