Analysis of information sources in references of the Wikipedia article "Heresy in Christianity" in English language version.
[Walter Bauer claimed] that Christianity was a diverse phenomenon from the beginning, that 'varieties of Christianity' arose around the Mediterranean, and that in some places what would later be called 'heretical' was initially normative [...] Although some of Bauer's reconstructions are inaccurate and have been dropped, the idea that Christianity was originally a diverse phenomenon has now been generally accepted.
One of the first and most notable developments consisted in a growing awareness that earlier commentators had indeed been right to consider Bruno's trial as being closely linked to that of Galileo (...) Jean Seidengart underlined the particular emphasis to be found throughout the trial on Bruno's doctrine of a plurality of worlds." and "Bruno, however, by admitting so candidly his distance from the Catholic theology, was indirectly questioning such a system of law, which imposed on his conscience views different from his own. (...) he was doing it in the name of a principle of religious pluralism which derived directly from his cosmology.