The Boston Tea Party was the direct result of the Townshend Acts~
Earliest human migrations and expansions of archaic and modern humans across continents began two million years ago with the migration out of Africa of Homo erects.
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Changes in social and living conditions. The industrial and economic developments of the Industrial Revolution brought significant social changes. Industrialization resulted in an increase in population and the phenomenon of urbanization, as a growing number of people moved to urban centres in search of employment.
https://toistudent.timesofindia.indiatimes.com/news/culture/why-was-genghis-khan-feared/11255.html theres a good article on your question
