In some of the languages of the western Slavic countries (Poland, Czechy, Slovakia -- postscript: I have seen that the Slovaks use the Latin names, and that the Ukrainians use nature names -- and Croatian) months are named for seasonal features. Some of the names don't match between languages. In Croatian, srpanj is July, but in Czechy, srpen is August! Apparently, because Czechy is farther north, the harvest time happens later in the summer. I wonder if there is an account of how the names of months in these different languages were created. I also find it interesting that Catholic peoples wouldn't use the Latin month names.