Temporary capital of Lithuania during the invasion of Poland, to Lithuania according to the Soviet–Lithuanian Mutual Assistance Treaty. Since then Vilnius has been the capital of the Lithuanian SSR and then independent Lithuania. Lithuania refused to have diplomatic relations between Poland and Lithuania until the ultimatum of 1938. Railroad traffic, telegraph lines or even mail could not cross the Polish–Lithuanian border. Lithuania continued to declare Vilnius as its capital in all official documents, including the constitution. Since the city was controlled by Poland, all Lithuanian authorities were transferred to the city of Kaunas, which became the seat of the government. To reconcile reality with
History of Jerusalem during the Kingdom of Jerusalem city in the Middle Ages, the economy of Jerusalem relied heavily on the tourism of pilgrims from Christian Europe. It received a further boost when it was exempted from customs enabling the city's markets to develop and sell the pilgrims imported goods. The importance of this industry continued to grow with the establishment of Jerusalem as a holy place, which also led to improved roads and traffic safety. Another factor affecting the economy of the city was the various administrative centers - regal, ecclesiastical, and military - that operated from Jerusalem. Being a capital city, Jerusalem was the center of