United Arab Emirates: Did you mean...?

Abu Bakr (l. 573-634 CE, r. 632-634 CE) was an early convert of Islam; he was a close friend and confidant of the Islamic Prophet Muhammad, and became the first caliph of the Islamic empire – a successor to Muhammad's temporal position but...

The Theodosian Walls are the fortifications of Constantinople, capital of the Byzantine Empire, which were first built during the reign of Theodosius II (408-450 CE). Sometimes known as the Theodosian Long Walls, they built upon and extended...

Valerian ruled as emperor of the Roman Empire from 253 CE until his capture in 260 CE. In 253 CE an elderly Roman military commander and experienced former senator was proclaimed emperor by his troops - a very common occurrence at the time...

The coinage of the Byzantine Empire continued that of its more ancient predecessors and functioned as a convenient method of payment for goods and services, especially to soldiers and officials, and as a means for people to pay their taxes...

Between 850 BCE and 1600 CE, great civilizations thrived in Africa, yet few non-Africans have learned about them. While some may be familiar with the achievements of ancient Egypt, most of our knowledge of African history is tainted by the...

The qanat (called foggara in North Africa and the Levant, falaj in the United Arab Emirates and Oman, kariz in Iran, and puquios in Peru) is an ancient Middle Eastern irrigation technique in which a long tunnel is dug into arid land that...

The Louisiana Purchase was a land deal made in 1803, in which the United States purchased 828,000 square miles (2,144,510 km²) of land west of the Mississippi River from France for $15 million, or an average of three cents per acre. The purchase...

The Chesapeake-Leopard affair was an incident that took place off the coast of Norfolk, Virginia, on 22 June 1807 when the British warship HMS Leopard fired on and boarded an American frigate USS Chesapeake while searching for deserters from...

The American Revolution (1765-1789) was a period of political upheaval in the Thirteen Colonies of British North America. Initially a protest over parliamentary taxes, it blossomed into a rebellion and led, ultimately, to the birth of the...

The island of Sri Lanka (formerly known as Ceylon) became a focus of European attention soon after the Portuguese entry into the Indian Ocean in the late 15th century. Large swaths of the island would come first under Portuguese control...