Plovdiv price for Ivan Alexander of Bulgaria's support in the Byzantine civil war of 1341–47. In 1364 the Ottoman Turks under Lala Shahin Pasha seized Plovdiv. According to other data, Plovdiv was not an Ottoman possession until the Battle of Maritsa in 1371, after which, the citizens and the Bulgarian army fled leaving the city without resistance. Refugees settled in Stanimaka. During the Ottoman Interregnum in 1410, Musa Çelebi conquered the city killing and displacing inhabitants. The city was the centre of the Rumelia Eyalet between 1364 and 1443, a sanjak centre of it between 1443 and 1593, the sanjak centre
History of Plovdiv and the Day of Plovdiv. After Unification Plovdiv remained the second city in population and significance after the capital Sofia. The first railway in the city was built in 1874 and after 1888 it was linked with Sofia. In 1892 Plovdiv became host of the First Bulgarian Fair with international participation which was succeeded by the International Fair Plovdiv. After the liberation the first brewery was inaugurated in the city. In the beginning of the 20th century Plovdiv grew as a significant industrial and commercial center with well-developed light and food industry. German, French and Belgian capital was invested in