Those who argue from the inevitability stance tend to point to the differences between the two nations, which date back to the Austro-Hungarian Empire, and to other issues. There are ethnic differences between the Czechs and Slovaks, such as problems with the shared state during communism, the success of the state in the Czech lands and its failure in the Slovak lands that still resulted in the adoption of communism since the Czechs were more influential in the running of the state than Slovaks, and the 1968 constitution with its minority veto.