Константина: История и современность алжирского города мостов.

Constantine (قسنطينة), also spelled Qacentina or Kasantina, is the capital of Constantine Province in northeastern Algeria. During Roman times it was called Cirta and was renamed "Constantina" in honour of Emperor Constantine the Great. Located somewhat inland, Constantine is about from the Mediterranean coast, on the banks of the Rhumel River. Constantine is regarded as the capital of eastern Algeria and the commercial centre of its region and has a population of about 450,000 (938,475 with the agglomeration), making it the third largest city in the country after Algiers and Oran. There are several museums and historical sites located around the city. Constantine is often referred to as the "City of Bridges" because of the numerous picturesque bridges connecting the various hills, valleys, and ravines that the city is built on and around. Constantine was named the Arab Capital of Culture in 2015.

The ancient name of Constantine is Cirta and was the capital of Numidia. In 112 B. C., the city was the capital of the Numidian king Jugurtha, who defeated his half brother Adherbal. The city later served as the base for Roman generals Quintus Caecilius Metellus Numidicus and Gaius Marius in their war against Jugurtha. Later, with the removal of King Juba I and the remaining supporters of Pompey in Africa (c. 46), Julius Caesar gave special rights to the citizens of Cirta, now known as Colonia Sittlanorum. In 311 AD, during the civil war between emperor Maxentius and usurper Domitius Alexander (a former governor of Africa), the city was destroyed. Rebuilt in 313 AD, it was subsequently named in Latin as "Colonia Constantiniana" or "Constantina", after emperor Constantine the Great, who had defeated Maxentius. During the Roman occupation of Constantine, the city exported wheat. Constantine the only city that lay on both of the Roman roads paved in Algeria. Captured by the Vandals in 432, Constantine returned to the Byzantine Exarchate of Africa from 534 to 697. It was conquered by the Arabs in the 8th century, receiving the name of Qacentina, It was part of the region known to the Islamic world as Ifriqiya.

The city recovered in the 12th century and under Almohad and Hafsid rule it was again a prosperous market, with links to Pisa, Genoa and Venice. After taking it from the Hafsids in 1529 it was intermittently part of Ottoman Empire, ruled by a Turkish bey (governor) subordinate to the dey of Algiers. Salah Bey, who ruled the city in 1770–1792, greatly embellished it and built much of the Muslim architecture still visible today. During the Ottoman reign of Constantine, merchants traded a variety of goods such as; agricultural products, animals, embroidered textiles, leather, precious metals, swords, and pistols. In 1826 the last bey, Ahmed Bey ben Mohamed Chérif, became the new head of state. He led a fierce resistance against French forces, which had invaded Algeria four years later. By 13 October 1837, the territory was captured by France, and from 1848 on until 1962 it was the centre of the Constantine Département. In 1880, while working in the military hospital in Constantine, Charles Louis Alphonse Laveran discovered that the cause of malaria is a protozoan. He observed the parasites in a blood smear taken from a soldier who had just died of malaria. For this, he received the 1907 Nobel Prize for Physiology or Medicine. During World War II, during the campaign in North Africa (1942–43), Allied forces used Constantine and the nearby cities of Sétif and Bone as operational bases.

Constantine is situated on a plateau at an elevation above sea level. The city is framed by a deep ravine and has a dramatic appearance. The city is very picturesque with a number of bridges over Rhumel River and a viaduct crossing the ravine. The ravine is crossed by seven bridges, including Sidi M'Cid bridge. Constantine is the railhead of a prosperous and diverse agricultural area. It is also a centre of the grain trade and has flour mills, a tractor factory, and industries producing textiles, wool, linen and leather goods. Algeria and Tunisia serve as its markets.

Constantine has a Mediterranean climate (Köppen climate classification Csa), with hot, dry summers and mild, moist winters.

Constantine has in general four universities: two of them are downtown Constantine Mentouri Public University, designed by the Brazilian architect Oscar Niemeyer, and Algerian architect Rashid Hassaine, including Zerzara technical engineering pole, Zouaghi Slimane Geography and Earth Sciences Pole, and in the City of El Khroub is the Institute of Veterinary Sciences. Emir Abdelkader University is one of the biggest Islamic universities with many faculties covering religious studies, foreign languages, and literature. Constantine's new town "nouvelle ville ali mendjeli" has two big universities: Université Constantine 2 known as "lella nsoumer" offers maths, computer and economy majors, and the new university is actually a university pole with more than 20,000 students, 17 faculties and more than 40,000 residents. It is now the largest African university under the name of "Université Salah Boubnider" known as "Université Constantine 3".

Constantine is served by Mohamed Boudiaf International Airport. Constantine also owns its 14.7 km long tram network serving the city centre at the airport and the main neighbourhoods of the metropolis Constantine tramway.