Plant populations change over time by growing in size and diversity. They generally are the first part of an ecosystem after lichens (the pioneer species) and cause an ecosystem to flourish and allow for animals to move in. I don't know if this is the answer you were looking for but it should give you somewhat of a base.
The wright brothers- 1903
Thomas edison-1879
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Housing - cities lived in cramped apartment buildings called insulae
Entertainment - chariot races at the Circus Maximus, musical and theatrical performances, public executions, beast hunts, and gladiatorial combat
Religion - This made the religion of ancient Rome polytheistic, in that they worshipped many gods. They also worshipped spirits. Rivers, trees, fields and buildings each had their own spirit, or numen
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