Cement: Did you mean...?

Portland cement silos in Washington, USA. Portland cement was a fast-setting cement invented in 1824 by the Yorkshireman Joseph Aspdin (1778-1859). Aspdin created the cement through experimentation when he discovered that a heated mixture...

He who saw everything in the broad-boned earth, and knew what was to be known, Who had experienced what there was, and had become familiar with all things. The Epic of Gilgamesh. The tornado has started After the US-led invasion of...

The Romans are known for their remarkable engineering feats, be they roads, bridges, tunnels, or their impressive aqueducts. Their constructions, many of them still standing, are a testament to their superior engineering skills and ingenuity...

The Sanctuary of Fortuna Primigenia at Palestrina (ancient Praeneste) in Italy was built in the 2nd century BCE to honor the goddess Isis and the goddess Fortuna. The massive site spans a mountainside, built with Roman cement or pozzolana...

The British Industrial Revolution (1760-1840) brought innovative mechanisation and deep social change. The process saw the invention of steam-powered machines, which were used in factories in ever-growing urban centres. Agriculture remained...

The Visigoths were the western tribe of the Goths (a Germanic people) who settled west of the Black Sea sometime in the 3rd century CE. According to the scholar Herwig Wolfram, the Roman writer Cassiodorus (c. 485-585 CE) coined the term...

Chacchoben (pronounced chac-CHO-bin) is a Maya site dated to c. 700 located in the state of Quintana Roo, Mexico. Once a large and significant urban religious center, the city was abandoned c. 900-950 CE at about the same time as the other...

The Roman Empire, at its height (c. 117), was the most extensive political and social structure in western civilization. Building upon the foundation laid by the Roman Republic, the empire became the largest and most powerful political and...

Gaius Julius Caesar was born 12 July 100 BCE (though some cite 102 as his birth year). His father, also Gaius Julius Caesar, was a Praetor who governed the province of Asia and his mother, Aurelia Cotta, was of noble birth. Both held to the...

Babylon is the most famous city from ancient Mesopotamia, whose ruins lie in modern-day Hillah, Iraq, 59 miles (94 km) southwest of Baghdad. The name is derived from bav-il or bav-ilim, which in Akkadian meant "Gate of God" (or "Gate of the...