Constantine, Algeria
Modern history

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 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. This was the first time that protozoa were shown to be a cause of disease. His work helped inspire researchers and veterinarians today to try to find a cure for malaria in animals.

In 1934, Muslim anti-Jewish riots, the 1934 Constantine Pogrom, caused the death of 23 local Jews and 3 local Muslims, 81 people were injured on both sides of the conflict.

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.
keywords:existence