Çankırı was known in antiquity as Gangra, and later Germanicopolis. The city has also been known as Changra, Kandari or Kanghari Α town of Paphlagonia that appears to have been once the capital of Paphlagonia and a princely residence, for it is known from Strabo that Deiotarus Philadelphus, the last king of Paphlagonia, resided there. Notwithstanding this, Strabo describes it as only "a small town and a garrison". According to 1st-century BC writer Alexander the Polyhistorthe town was built by a goat herder who had found one of his goats straying there; but this origin is probably a mere philological speculation as gangra signifies "a goat" in the Paphlagonian language. Gangra, was absorbed into the Roman province of Galatia upon the death of Deiotarus in 6/5 BC. The earlier town was built on the hill behind the modern city, on which are the ruins of a late fortress, while the Roman city occupied the site of the modern city. In the writings of the 2nd-century AD Greco-Roman writer Ptolemy, the city is referred to as Germanopolis. It was named Germanicopolis, after Germanicus or possibly the emperor Claudius, until the time of Caracalla. In Christian times, Gangra was the metropolitan see of Paphlagonia. Hypatios, bishop of Gangra, is considered a saint in the Orthodox Christian tradition. He was killed by Arians on his return from the Council of Nicaea, in which he took part. In the 4th century, the town was the scene of an important ecclesiastical synod, the Synod of Gangra. There is disagreement about the date of the synod, with dates varying from AD 341 to 376. The synodal letter states that twenty-one bishops assembled to take action concerning Eustathius of Sebaste and his followers. The synod issued twenty canons known as the Canons of Gangra; these were declared ecumenical by the Council of Chalcedon in 451. Over the centuries the settlement witnessed the hegemony of many cultures and races, such as Hittites, Persians, ancient Greeks, Parthians, Pontic Greeks, Galatians, Romans, Byzantine Greeks, up to the Seljuks and finally the Ottoman Turks. Traces from its long past are still visible throughout the city. The continuity of the city's name from ancient times across languages is of note: Hangara for the Arabs, Gagra for the Jews and Tzungra or Kângıri or Çankıri for the Turks. In the early stages of the Armenian Genocide, Many Armenian notables were killed or sent here, including Komitas, Ruben Sevak, and Daniel Varoujan.
Climate
Çankırı has a dry summer continental climate with humid continental climate characteristics, since the wettest part of the year is spring and early summer. The province displays all four of these continental climate subtypes depending on location and elevation. The city is located in a transitional region of the province. Summers are usually hot and dry and winters are cold and snowy.
Economy
Agriculture
Various agricultural produce, including wheat, corn, beans, and apples is grown in the farms and fields.