Periods: 1) (time up until-600BCE) 2) (c. 600BCE-600CE) 3) (c. 600CE-1450) 4) (c. 1450-1750) 5) (c. 1750-1900) 6) (c. 1900-present) for each time period the first of the three sentences should be an introduction into the period and the second and third should be about the technological and environmental transformations of the period. please have this done in an hour. its only one page.
