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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 period since 1950 has brought "the most rapid transformation of the human relationship with the natural world in the history of humankind". [106] Through 2018, humans have reduced forest area by ~30% and grasslands/shrubs by ~68%, to make way for livestock grazing and crops for humans. [107]
World human population reached the 7 billion. Tornadoes of 2011 , a series of destructive and record - breaking tornado outbreaks and tornado outbreak sequences strike the heartland of the United States , killing hundreds of people, injuring scores more, and causing billions of dollars in damages, particularly in St. Louis and Joplin in ...
A new DNA analysis has shown that the arrival of modern humans from Africa was far from smooth. ... modern humans went extinct many times before going on to populate the world, new studies have ...
From climate change to species loss and pollution, humans have etched their impact on the Earth with such strength and permanence since the middle of the 20th century that a special team of ...
While few scientists doubt the impact humans have made on the planet, the geological community was divided about whether the changes rose to the level of epoch, suggesting it was too soon in ...
Overview map of the peopling of the world by early humans during the Upper Paleolithic, following the Southern Dispersal paradigm. The so-called "recent dispersal" of modern humans took place about 70–50,000 years ago. [60] [61] [62] It is this migration wave that led to the lasting spread of modern humans throughout the world.
Human overpopulation (or human population overshoot) is the idea that human populations may become too large to be sustained by their environment or resources in the long term. The topic is usually discussed in the context of world population , though it may concern individual nations, regions, and cities.