Apple Apple Apple
Let's say that the number of apples above this line is 3. Since you can correlate something with it, it exists in the material world.
Now, keep counting the apples from left to right and right to left and do not stop. You will reach aleph-null.
Hence, it exists in the material world.
If someone deduces the conclusion from what is evident in today's history, it is possible that he can enumerate a list of things that have changed in a good or a bad way. For example, we now have more poverty than before( which is generally considered bad).
However, placing the ovserver back in time is not the same thing. For example, We know that the british ruled India back then. But it might have been possible that the common man back then did not know that they are being ruled by someone else.
Also, according to many parapsychologists, a lot of memory is lost when you are reborn.
[....]If you were born in India at the time before the British came and after it [...]
are you asking me to imagine being born twice? Once before them and once after?
Hmm, I have little faith that time existed before I was born. Also, I do not know if time really strictly existed between the intervals which I can remember.