public String getCountryHistoryFile(final String tag) {
        if (usingMod) {
            if (replaced.contains("history")) {
                return getFile(modDirName + "history/countries", tag, false);
            } else if (extended.contains("history")) {
                String filename = getFile(modDirName + "history/countries", tag, false);
                if (filename != null)
                    return filename;
                else
                    return getVanillaCtryHistoryFile(tag);
            } else {
                return getVanillaCtryHistoryFile(tag);
            }
        } else {
            return getVanillaCtryHistoryFile(tag);
        }
    }