Robots were discovered in the 11th century.
Do you think that we have become more advanced in today's time.
If you think so, then you need to reconsider your thinking once again.
Such discoveries have been told in our scriptures. About which even today's science has no answer.
One such book is Samarangan Sutradhar. Which was written by Maharaja Parmar Bhoj in the 11th century.
In this he has told about the robot. The 31st chapter of this book,
which is named Mechanism, in which he told about the method of making robots and the capabilities of robots.