After opening the Chamber of Secrets, he used the Basilisk to kill Myrtle Warren, providing the murder necessary to craft a Horcrux. Voldemort entrusted his diary to Lucius Malfoy, who later seized the opportunity to smuggle it back into Hogwarts.
June 13, 1942: Tom Riddle murders Myrtle Warren (a.k.a. Moaning Myrtle) in the first-floor girls' bathroom at Hogwarts School of Witchcraft and Wizardry, sending a piece of his soul into his diary. It becomes his first Horcrux.
When Jo Rowling was asked on the Bloomsbury webcast who died to make Voldemort's seven Horcruxes, she answered: The diary ” Moaning Myrtle. The cup ” Hepzibah Smith, the previous owner. The locket ” a Muggle tramp.
The Dark Lord — aka Voldemort — created seven Horcruxes in an attempt to sustain immortality. But, as you may have heard, Voldemort's plan ultimately failed. Harry Potter and co. found and destroyed all of his Horcruxes.
'There will come a time when Lord Voldemort will seem to fear for the life of his snake. ' Nagini was not only the last Horcrux to be killed, but also the last Horcrux to be created. In an interview, J.K. Rowling revealed that it was the murder of Bertha Jorkins that made Nagini a Horcrux.
Nonetheless, despite her initially benevolent nature, Nagini's blood curse eventually turned her into a snake permanetly. Though it is unknown if she became evil as a result of that, or was turned evil as a result of Voldemort turning her into a Horcrux. As a snake, Nagini was completely loyal to Lord Voldemort.
Eventually, Nagini's blood curse permanently turned her into a snake. She was eventually acquired by Lord Voldemort.
Harry makes use of two of the Unforgivable Curses in the books. Dueling with Bellatrix Lestrange, he attempts the Cruciatus curse, with limited results; Bellatrix says that he has to really hate someone to make the Unforgivable Curses work properly, righteous indignation isn't enough.
Quirrell is, in effect, turned into a temporary Horcrux by Voldemort. He is greatly depleted by the physical strain of fighting the far stronger, evil soul inside him.
Lord Voldemort's first Horcrux was created when he was still at Hogwarts, known then as Tom Riddle. After murdering a schoolgirl called Myrtle, with the help of the ancient monster that dwelled within the castle, the Basilisk, his soul was split for the first time.
Seven is, of course, the most magical number, which is why Voldemort split his soul into seven - each time committing murder to do so. One piece of his soul remained inside him and he chose six objects with a special meaning or connection to him in which to place the other six pieces.
Harry Potter became a Horcrux when the love from his mother protected him from Lord Voldemort's curse. Instead of killing Harry the curse backfired and destroyed Voldemort's body and all his power. In the course of this battle, Voldemort accidentally gave part of his powers to baby Harry as well as a piece of his soul.
Harry Potter and the Deathly Hallows
In this book, Rowling reveals that Bellatrix is the guardian of Helga Hufflepuff's cup (though she is unaware that it is a Horcrux), which Voldemort has entrusted the Lestranges to keep in their Gringotts vault.
So why wasn't the Horcrux residing in Harry's head destroyed when he was bitten by the Basilisk? The answer is simple: He didn't actually die. Fawkes quickly healed the bite wound with his phoenix tears just in time.
Voldemort intentionally made six Horcruxes, but when he used Avada Kedavra on Harry, he unintentionally created a seventh Horcrux. Instead of dying, Lily's love for Harry created a counter 'curse' known as Sacrificial Protection and saved Harry.
The Locket
Of all of Lord Voldemort's Horcruxes, Salazar Slytherin's old locket is the most difficult to obtain and destroy. In the Half Blood Prince, Harry Potter and Albus Dumbledore travel to an old cave where the Dark Lord would torture victims during his time as a teenager.
Analysis. It is perhaps interesting that no person destroyed more than one Horcrux. Harry, Ron, Hermione, Neville, Dumbledore, Crabbe (indirectly: the diadem fell apart in Harry's hands after being damaged by Crabbe's fiendfyre), and Voldemort each destroyed one of the seven.
The Killing Curse was created in the early Middle Ages by Dark witches and wizards. Primarily, the curse was used to quickly slay opponents during a duel. In 1707, the Wizards' Council was restructured into the Ministry of Magic, which allowed for more strict restrictions on certain types of magic.
The three Unforgivable Curses are the Cruciatus Curse, which causes unbearable pain; the Imperius Curse, which allows the user to control the actions of the victim; and the Killing Curse, which causes instant death.
Cruciatus Curse ('Crucio')
Harry tried to use this spell himself. The first time was against Bellatrix after she had killed Sirius. His attempt was unsuccessful because, as Bellatrix mockingly explained: 'You need to really want to cause pain – to enjoy it – righteous anger won't hurt me for long…'
Tragically, even though Credence was saved from Grindelwald's Avada Kedavra, he is dying because of his Obscurus (having survived so long only because of the powerful magic within him).
Because Voldemort beleive that elder wand belongs to Snape but acctually it belongs to Melfoy. So Snape made voldemort belive that if he kill snape then the wand will belongs to him. So Snape didn't defend himself from nagini.
J.K. Rowling recently gave more insight into one of the most controversial characters in the Wizarding World: Nagini, who was known only as Voldemort's snake in "Harry Potter," but appears as a woman in the prequel series, "Fantastic Beasts."