I believe the answer is: Hypnotic age regression
Hypnotic age regression's result would be extremely determined by the relaxation state of the patient and the willingness of the patient to cooperate with the hypnosis.
With this method, we could even obtain pieces of information that is not consciously remembered by the patient but still lie dormant in his/her subconscious
Answer:
large,home to thousands of people
Woman Can Vote = United States
2. Roman Republic and USA
3 Roman Republic
4 United states
The Roman military engineering was very extraordinary as well as allowing troops to build roads, camps, and bridges. This mastering of engineering led to Roman troops being able to move more rapidly, camp in enemy territory and reduce marching times.