Einstein's 1915 theory of gravitation, or General Relativity, is now a central pillar of consensus physics and science – but it was not always so. It contributes to our understanding of cosmology and how particles inter-act with each other – but this was not always so according to Alexander Blum et al in an editorial introducing a special issue on Einstein, 'The Renaissance of Einstein's Theory of Gravitation' in the European Physical Journal (2017) DOI:10.1140/epjh/e2017-80023-3 (see https://phys.org/print419072124.html ).
In a special issue of the journal new insights into the historical process leading to a renaissance is explored, including an extension of the foundation of the original theory, ultimately leading to a global transformation in its character. According to some the authors the 1915 version of the theory was insufficient.