Final answer:
The estimated time period mentioned is 1,000-1,500 years, as it is the only option that includes the 'real' answer of 1,335 years, and is consistent with the hinted time frames, such as 'a few millennia'.
Step-by-step explanation:
The estimated time period mentioned in the given statement can be deduced by analyzing the time periods represented by each option and comparing them with the provided hints. We have hints like "a few millennia" (hint 17), which suggests a time frame of several thousand years. Additionally, the hint that the "real" answer would be 1,335 years (hint 12) narrows down the options, as only 1,000-1,500 years would include 1,335 years within its range. Given these clues and considering the historical periods listed, such as those from c. 2649-2150 BCE to c. 1070-713 BCE, the most accurate estimated time period mentioned would be 1,000-1,500 years.