He destroyed the diary with a Basilisk fang; the other ones were destroyed by other people.
Harry didn't make Horcruxes, Voldemort did.
In the Harry Potter series, Harry is trying to stop He-Who-Must-Not-Be-Named (Volderemort) from taking over the magical world, so he has to destroy all horcruxes and defeat the villian.
Harry Potter
For the most part, Harry, Ron and Hermione are searching for horcruxes to defeat voldmort once and forall. It continues into part2
Search for horcruxes so he can kill voldemort
The remaining horcruxes.
Harry potter is looking for horcruxes to destroy them and kill lord voldemort
With unbelievable luck.
Harry, Ron, and Hermione need to find the 6 (of what they know) Horcruxes and destroy them. they found and destroyed them all to defeat Voldemort.
Harry only destroyed one but all of them were destroyed.
Yes he is a Horcrux created by mistake.
The main conflict is Harry needs to find all the Horcruxes to be able to defeat Voldemort and he solves it by skipping school and going to look for them.