Why is the boundary pillar in Banan so embarrassing?

Because it is a stone with a long history, there is no written record and no evidence to prove its history.

Its historical origin has always been a mystery and an embarrassing one.

The history of the boundary pillar in Banan has also been questioned by many people. Some people think it is an ancient stone, others think it is a modern stone, but there is no evidence to prove its authenticity.