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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 continential land except Antarctica by the end of the Ice Age 12,000 years ago.
To BaháΚΌís, the purpose of life is focused on spiritual growth and service to humanity. Human beings are viewed as intrinsically spiritual beings. People's lives in this material world provide extended opportunities to grow, to develop divine qualities and virtues, and the prophets were sent by God to facilitate this. [142] [143]
The history of life on Earth traces the processes by which living and extinct organisms evolved, from the earliest emergence of life to the present day. Earth formed about 4.5 billion years ago (abbreviated as Ga, for gigaannum) and evidence suggests that life emerged prior to 3.7 Ga. [1] [2] [3] The similarities among all known present-day species indicate that they have diverged through the ...
Human nature comprises the fundamental dispositions and characteristics—including ways of thinking, feeling, and acting—that humans are said to have naturally. The term is often used to denote the essence of humankind, or what it 'means' to be human. This usage has proven to be controversial in that there is dispute as to whether or not ...
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 ...
Humans are one of the most adaptable species, despite having a low or narrow tolerance for many of the earth's extreme environments. [134] Currently the species is present in all eight biogeographical realms , although their presence in the Antarctic realm is very limited to research stations and annually there is a population decline in the ...
The diversity of life on Earth is a result of the dynamic interplay between genetic opportunity, metabolic capability, environmental challenges, [90] and symbiosis. [91] [92] [93] For most of its existence, Earth's habitable environment has been dominated by microorganisms and subjected to their metabolism
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.