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The categorisation of the past into discrete, quantified named blocks of time is called periodization. [1] This is a list of such named time periods as defined in various fields of study. These can be divided broadly into prehistorical periods and historical periods (when written records began to be kept).
The time from Britain's first inhabitation until the Last Glacial Maximum is known as the Old Stone Age, or Palaeolithic era. Archaeological evidence indicates that what was to become England was colonised by humans long before the rest of the British Isles because of its more hospitable climate between and during the various glacial periods of ...
Historians have paid special attention to the role of women, family, and gender in the colonial South since the social history revolution in the 1970s. [172] [173] [174] Very few women were present in the early Chesapeake colonies. In 1650, estimates put Maryland's total population near 600 with fewer than 200 women present. [175]
The history of Europe is traditionally divided into four time periods: prehistoric Europe (prior to about 800 BC), classical antiquity (800 BC to AD 500), the Middle Ages (AD 500–1500), and the modern era (since AD 1500). The first early European modern humans appear in the fossil record about 48,000 years ago, during the Paleolithic era.
An Egyptian method of determining the time during the night, used from at least 600 BC, was a type of plumb-line called a merkhet. A north–south meridian was created using two merkhets aligned with Polaris, the north pole star. The time was determined by observing particular stars as they crossed the meridian. [24]
Human history is the record of humankind from prehistory to the present. Modern humans evolved in Africa around 300,000 years ago and initially lived as hunter-gatherers.They migrated out of Africa during the Last Ice Age and had spread across Earth's continental land except Antarctica by the end of the Ice Age 12,000 years ago.
The history of immigration to the United States details the movement of people to the United States from the colonial era to the present day. Throughout U.S. history , the country experienced successive waves of immigration , particularly from Europe (see European Americans ) and later on from Asia (see Asian Americans ) and Latin America (see ...
The human history of the Americas is thought to begin with people migrating to these areas from Asia during the height of an ice age. These groups are generally believed to have been isolated from the people of the " Old World " until the coming of Europeans in the 1492 with the voyages of Christopher Columbus .