DelcevoAccording to a tradition in Byzantine times it was called Vasilevo, which translated from Greek means Tsarevo Selo. It was first mentioned as a settlement under the name Tsarevo Selo in a charter of Tsar Dushan from 1347-1350. With it he gave the monastery in Lesnovo more places and fields than Pijanec. In Turkish times, Delchevo was called Sultania.
Until the 17th century the settlement lay on the right side of Bregalnica on today's toponym Selishte, more precisely under the Ostrets hill near the road leading to Bulgaria. From the first centuries of Turkish rule, Delcevo's position has not been widely available. In the middle of the 17th century, Sultan Mehmed IV resided in his area. During his visit there was a mass pilgrimage. It is assumed that the scrub was probably relocated to the present day, on the left side of Bregalnica at the time of this sultan. The city's mosque built in the 17th century is cited as evidence. Evlija Celebia for Delcevo says: “From Vinica we climbed the Kocani Mountain Mine, moving through the gorge and arriving in Tsarevo Selo after four hours. This is a Muslim village in the hem of a mountain and is decorated with 100 houses and one covered with a magnificent minaret mosque. " The oldest part of the city is considered the Turkish colony that was created around the mosque. Until the 19th century Delcevo was a village, a Turkish colony, inhabited by a certain number of pure-blooded Turks and a large part of the Turkic population, called Pomaks, who did not know the Turkish language. Only a few families were Macedonian.
In the middle of the 19th century, the bazaar began to develop and the settlement to grow, and at the same time to increase the number of Macedonian population. In 1863 there were 75 in Delchevo and in 1873 109 Macedonian houses. In 1856 the construction of the church was completed, which mainly settled the Macedonian population who fled from the Turkish oppression in the surrounding villages.
Greater emigration of the Macedonian population occurred due to Turkish pressure in liberated Bulgaria in 1878. At that time there was a larger Turkish population from Bulgaria, and even from Bosnia and Herzegovina. The incoming Turkish population, called "Madziri", settled in Madziri District, present-day III district of the city. On the left side of Bregalnica, in the narrow flat area where the magnesium and ananas were, the construction of commercial and craft shops began. This finally established the bazaar and Delcevo finally became a city settlement.
In 1914 the population was 1,701. In 1931 the population increased to 3,746. After this year part of the Turkish population voluntarily emigrated to Turkey. In 1935 the first houses were built on the right side of Bregalnica.
In 1950 Tsarevo Selo was renamed Delcevo. In the 1960s the town expanded to the right of Bregalnica, and in the seventies to the Milkovo Brdo hill.
According to the 1981 census in Delcevo there were 2,099 households with a total of 8,065 inhabitants. It is estimated that in 1985 Delcevo had a population of about 9,000.