"... you always have to start from where you are!"

We have examined the difference between Property and Ownership, where Property is most accurately described as the item or object to be owned, and Ownership is the the act of owning, or relationship that the Owner has the the Property.

There is also a difference between "ownership", and "possession".

"Possesion refers to a situation in which a particular property is under the immediate control of a person, but certain moral components or concepts are lacking.

"Ownership" refers to a relationship between an owner and a property, whether or not the property is in his immediate possession at any given moment in time.

Ownership then is a moral concept.  Ownership can exist only where certain moral ideas have generally been accepted.

In earliest times, it is likely that ownership as a concept did not exist.  Property was either possessed, or available for possession.

Ownership is a much more complex and sophisticated idea, and probably did not develop until later.

Possession demands the immediate presence of (and therefore the immediate control by) a person over a property.  Possession is usually based on force.

Og the cave man for example, produces a spear.  He finds it useful and superior to other spears and other weapons.  He therefore wants to use that spear perpetually and to not have it taken from him by other members of his tribe.

Og's only recourse in this early case is to keep this spear near by him at all times, so that he can physically grasp and hold the spear, and defend his possession of the spear against others who might want the spear, who might snatch the spear while he was not looking and had set it down for a moment, or who might seek to remove it from his person by force.