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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 timeline of human evolution outlines the major events in the evolutionary lineage of the modern human species, Homo sapiens, throughout the history of life, beginning some 4 billion years ago down to recent evolution within H. sapiens during and since the Last Glacial Period.
The migrating modern human populations are known to have interbred with earlier local populations, so that contemporary human populations are descended in small part (below 10% contribution) from regional varieties of archaic humans. [note 2] After the Last Glacial Maximum, North Eurasian populations migrated to the Americas about 20,000 years ago.
Human activity – Arts • Childraising (Babysitting, Child care) • Crime (Harassment, Homicide) • Educating (Learning, Teaching) • Entertainment • Exercise • Exploration (Underwater exploration, Space exploration) • Globalization • Hobbies • Industrialisation • Innovation • Law enforcement • Learning • Leisure ...
"A sharp rock", an Oldowan pebble tool, the most basic of human stone tools The harnessing of fire was a pivotal milestone in human history. Acheulean hand-axes from Kent. H. erectus flint work. The types shown are (clockwise from top) cordate, ficron and ovate. Venus of Willendorf, an example of Paleolithic art, dated circa 30,000 years ago [188
Coral reefs are dying around the world. [146] Human activities have substantial impact on coral reefs, contributing to their worldwide decline. [147] Damaging activities encompass coral mining, pollution (both organic and non-organic), overfishing, blast fishing, as well as the excavation of canals and access points to islands and bays.
It took over two million years of human prehistory and history for the human population to reach one billion and only 207 years more to grow to 7 billion. [147] The combined biomass of the carbon of all the humans on Earth in 2018 was estimated at 60 million tons, about 10 times larger than that of all non-domesticated mammals. [139]
Social science – study of the world and its cultures and civilizations. Social science has many branches, each called a "social science". Sports – organized, competitive, entertaining, and skillful activity requiring commitment, strategy, and fair play, in which a winner can be defined by objective means. Generally speaking, a sport is a ...