History of Plovdiv plant for electrical apparata, tobacco plant, canning factory, motor-truck factory and many others. On 6 April 1956 the first trolleybus line was opened and in the 50s the emblematic Trimontsium Hotel was constructed. In the 60s and 70s there was construction boom and many of the modern neighborhoods took shape. In the 70s and 80s many antique remains were excavated and the Old Town was fully restored. In 1990 the Sports complex "Plovdiv" was finished. It included the largest stadium and rowing canal in the country. In that period Plovdiv became the birthplace of Bulgaria's movement for democratic reform, which
Plovdiv administrative structured units. According to the "Law for the territorial subdivision of the Capital municipality and the large cities," the territory of Plovdiv Municipality is subdivided into six district administrations with their mayors being appointed following approval by the Municipal Council. In 1969 the villages of Proslav and Komatevo were incorporated into the city. In 1987 the municipalities of Maritsa and Rodopi were separated from Plovdiv which remained their administrative center. In the last several years, the inhabitants from those villages had taken steps to rejoin the "urban" municipality. The city has more than 200 archaeological sites, 30 of which