In 1991 the factory of the automaker Volkswagen was founded in Bratislava (until 1994 as a joint venture with the "Bratislavské automobilové závody"); the fourth bridge over the Danube, Most Lafranconi, was built. On 17 July 1992 the Declaration of Independence of the Slovak Nation is adopted by the Slovak National Council (called National Council of the Slovak Republic since 1994). Six days later the prime ministers of the two constituent republics of Czechoslovakia agree to split the country into two independent states; the Constitution of Slovakia is adopted 1 September and signed at the Bratislava Castle 3 September. After the Dissolution of Czechoslovakia in 1992 the city is declared the capital of independent Slovakia.