Running the first grounded circuit in a home with 2-wire system.

In a 1953 14-2 wired home, an updated 100 amp panel has been installed with a braided copper ground wire running from an outside buried copper rod. No other bare ground wires are attached to the section where this Main Ground is. I have run a single 14 awg wire from that section to a junction box in my basement. To one side of the box I fed a 14-2 wire from a ceiling fixture. Then on the other side of the junction box I ran a 14-3 line to run to new or existing outlets to have grounded circuits in the basement. The reason for the single ground wire was because it 'fit' where a new 14-3 cable would not (existing cable or plumbing routes). It made sense to me at the time. But, is this a bonded connection? I just recently read about bonding and this idea seemed to cover the issue. Would appreciate any input.