PiSigma
"the engineer"
Ya from 2000 years ago... Notice China don't lay claim to northern Vietnam anymore, even though jiaozhi had been a province for 1000 years. Same with North Korea.
I can say the same for an Indian period from 2000 years ago, or Mughal Empire where the entire Indian territory is not part of today's map. So stop the double standard.
You can also find Chinese maps from Qing dynasty just over 100-200 years ago that is much bigger including Mongolia, outer Manchuria and parts of central Asia that China don't claim either.
My family is originally from Mongolia and outer Manchuria (near the mouth of the Amur) in my mom's side, you don't see me claiming it.
That map is only 260 years old, before USA existed, or India. Look at the Tibetan parts, just like Chinese claims today.