Kraków is the second largest and one of the oldest cities in Poland. Situated on the Vistula River, the city dates back to the 7th century. The first written record of the city’s name dates back to 965. In 1038, Kraków became the seat of the Polish government. By the end of the 10th century, the city was a leading centre of trade. Brick buildings were constructed, including the Royal Wawel Castle. Kraków’s historic centre was included on the list of UNESCO World Heritage Sites in 1978.