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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 American Nation: A History of the United States: AP Edition (2008) Egerton, Douglas R. et al. The Atlantic World: A History, 1400–1888 (2007), college textbook; 530pp; Elliott, John H. Empires of the Atlantic World: Britain and Spain in America 1492–1830 (2007), 608pp excerpt and text search, advanced synthesis
Environmental history is the study of human interaction with the natural world over time, emphasising the active role nature plays in influencing human affairs and vice versa. Environmental history first emerged in the United States out of the environmental movement of the 1960s and 1970s, and much of its impetus still stems from present-day ...
"The Significance of the Frontier in American History" is a seminal essay by the American historian Frederick Jackson Turner which advanced the Frontier thesis of American history. Turner's thesis had a significant impact on how people in the late 19th and early 20th centuries understood American identity, character, and national growth.
Map of early human migrations based on the Out of Africa theory; figures are in thousands of years ago (kya). [1]The peopling of the Americas began when Paleolithic hunter-gatherers (Paleo-Indians) entered North America from the North Asian Mammoth steppe via the Beringia land bridge, which had formed between northeastern Siberia and western Alaska due to the lowering of sea level during the ...
A reconstruction of human history based on fossil data. [194] It is more difficult to establish the origin of language; it is unclear whether Homo erectus could speak or if that capability had not begun until Homo sapiens. [125]: 67 As brain size increased, babies were born earlier, before their heads grew too large to pass through the pelvis.
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]
Black people were not American citizens and could never be citizens, the court said in a decision roundly denounced by the Republican Party as well as the abolitionists. Because enslaved people were "property, not people", by this ruling they could not sue in court. The decision was finally reversed by the Civil Rights Act of 1865. [97]