Complex sentence: The difference between Scandinavian-Finnish (Finno-Ugric peoples) and Russian-Slavic culture affected the nature of Finnish national integration; the upper social faction took the lead and gained domestic might from the Russian Czar in 1809.
Split into simpler sentences: The difference between Scandinavian-Finnish (Finno-Ugric peoples) and Russian-Slavic culture affected the nature of Finnish national integration. The upper social strata took the lead and gained domestic authority from the Russian Czar in 1809.