Andrew Dunbar wrote:
I would recommend the more technical word "orthography" over "spelling". I've done a very small number of articles on the English Wiktionary covering the most recent German spelling reform and I'm pretty sure I've used (''pre-1998'') and (''post-1998'') though I know this leaves a year uncovered in between because I wasn't sure of the dates. I've also done one or two for the old Russian orthograpy, I think 1908 was the year of change but I can't be sure. I've seen people using "pre-revolutionary" and "post-revolutionary" spelling, but I'd want to be 100% positive that there were no other reforms before or after the revolution to use such narrow terms.
The most important reform was introduced in 1917 by the Karensky government. See [[w:Reforms of Russian orthography]]
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