The future is the portion of the timeline that is still to occur, i.e. the place in space-time where lie all events that still have not occurred. In this sense the future is opposed to the past (the set of moments and events that have alrea...

The twenty-first century is the first century of the third millennium (2001 - 3000). The increasing prevalence of global communications and encounters with other calendars (Islamic calendar, Chinese calendar, Persian calendar, Hebrew calend...

The 20th century was a century that began on January 1, 1901 and ended on December 31, 2000. It was the tenth and final century of the 2nd millennium. It is distinct from the century known as the 1900s which began on January 1, 1900, and en...

The Industrial Revolution was a period of the 18th century marked by social and technological change in which manufacturing began to rely on steam power, fueled primarily by coal, rather than on animal labor, or on water or wind power; and...

The Age of Enlightenment was an intellectual movement in 18th-century Europe. The goal of the Enlightenment was to establish an authoritative ethics, aesthetics, and knowledge based on an "enlightened" rationality. The movement's leaders vi...

The Protestant Reformation was the schism within Western Christianity initiated by Martin Luther, John Calvin, and other early Protestants. Although there had been significant attempts at reform before Luther (notably those of John Wycliffe...

The Age of Discovery, or the Age of Exploration (sometimes also, particularly regionally, Age of Contact or Contact Period), is an informal and loosely defined term for the early modern period approximately from the beginning of the 15th ce...

The Renaissance (from French: Renaissance "re-birth", Italian: Rinascimento, from rinascere "to be reborn") was a cultural movement that spanned the period roughly from the 14th to the 17th century, beginning in Italy in the Late Middle Age...

The Middle Ages was the middle period in a schematic division of European history into three 'ages': Classical civilization, the Middle Ages, and Modern Civilization. It is commonly considered as having lasted from the end of the Western Ro...

The Byzantine Empire was the predominantly Greek-speaking continuation of the eastern half of the Roman Empire during Late Antiquity and the Middle Ages. Its capital city was Constantinople (modern-day Istanbul), originally known as Byzanti...

The Roman Empire was the post-Republican period of the ancient Roman civilisation, characterised by an autocratic form of government, headed by an Emperor, and large territorial holdings around the Mediterranean Sea in Europe, Africa, the M...

The Hellenistic period is the period of ancient Greek and eastern Mediterranean history between the death of Alexander the Great in 323 BC and the emergence of the Roman Empire as signified by the Battle of Actium in 31 BC and the subsequen...

The Iron Age is the period generally occurring after the Bronze Age, marked by the prevalent use of iron. The early period of the age is characterized by the widespread use of iron or steel. The adoption of these materials coincided with...

The Bronze Age is a time period characterized by the use of bronze, proto-writing, and other early features of urban civilization. The Bronze Age is the second principal period of the three-age Stone-Bronze-Iron system, as proposed in mo...

The Neolithic Era or New Stone age, was a period in the development of human technology, beginning about 10,200 BC, according to the ASPRO chronology, in some parts of the Middle East, and later in other parts of the world and ending betwee...