Question

from where was actually gravity originated?(not centr of earth)

Answer 1

Hi friend here is another short answer for you,

Gravity originate because of mass of the object
more the mass, more the gravity it has.

You can take example like our earth has more mass than any other things on the planet, so its force of attraction is more and its also implies why every thing attract each other , its because of its mass.

Now for the orgin, answer is none or you can say from centre just like there is no start and end of infinity.

Answer 2

No one really knows.

We can define gravity as a field of influence since we know how it operates in the universe, however, the reason for why it is, is frankly, unknown.

However, some scientists hypothesize that gravity is made up of tiny little particles called gravitons which travel at the speed of light.

So, we do not know what gravity is on any fundamental level, we only know how it behaves within our universe.