@heavenlydarkdragon: they aren't reboots they are just minor changes, a reboot is what flashpoint and COIE where. What you are useing as examples are not reboots and are not periods. A period would be a major moment in the characters current history like the New Krypton saga and Death of Superman. None of the example you have used are poor examples like Infinite and final crisis because they didn't just affect Superman but the whole DCU. So to use them as examples is just daft as well as calling them reboots.
@heavenlydarkdragon: Changes yes reboots no, also I have never heard of periods In A comic age. You adding a number to a point in a character's history does not make it a period. If anything you make it confusing for a new reader who knows nouthing about any of this stuff.
@heavenlydarkdragon: from 1986 to 2011 is the modern age aka pre flashpoint aka the pre new 52 universe. Everything that happens in that span of time happend to one superman. Witch is called Pre-flashpoint superman or pre-new 52 superman or if you will Modern Superman. There is no such thing as 94 Superman. So I should be,asking you if you know what your talking about.