He was bitten by the vicious werewolf Fenrir Greyback when he was a small child, and became infected with lycanthropy; the condition being incurable, he was doomed to live his life as a werewolf.
At some point in his early life Fenrir was bitten by a werewolf and infected with lycanthropy. Throughout most of his life, his only goal in life was to infect as many people as possible, in order to create enough werewolves to defeat the wizarding world.
Okay so, my understanding had always been that Snape found out that Remus was a werewolf during this incident that Lily is referencing — the whole Sirius telling Snape how to work the Willow, Snape going down to where Remus transforms, and James saving Snape from “whatever's down there” (presumably Remus as a wolf) ...
Simply put, Professor Severus Snape didn't trust Lupin, thought that he was helping Black into the Castle, and set the essay because he thought someone among the third years would be able to recognize he was a Werewolf.
Fenrir Greyback is a werewolf involved with the Death Eaters. He works alongside Lord Voldemort because of his promises of fairness to werewolves around the country. He does not carry the Dark Mark as he is not a Death Eater.
While we don't know exactly what happened to Draco in between books five and six, fans speculated that he was bitten by werewolf Fenrir Greyback upon Voldemort's orders. This is the same evil werewolf that bit Remus Lupin as a child, permanently throwing him to the wolves.
Though the tournament was meant to be friendly, it was revealed to be a part of a plot to resurrect Lord Voldemort. Sadly, this led to Viktor Krum, whose headmaster was a Death Eater, being hexed to aid in their attempts. In a way, this became a...
He could easily have stood on the sidelines and done nothing, just as Lupin had done so many years ago, but Lupin is the only person since Lily who has really understood Snape and forgiven him. Lupin sees Snape, understands the way he was ostracized as a child, and feels real remorse for not standing up for him.
But Lupin was actually in despair, convinced that he could not run the risk of marrying and passing on his lycanthropy to a child. Tonks, convinced that Lupin would never spend time with her again, became desperately unhappy.
Similarly to Harry, Snape's patronus represents a person. In the memories he gives Harry before his death, Snape shows Dumbledore his patronus, using the form to prove his love of Lily Potter, Harry's mother. This indicates that Lily also had a doe patronus.
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.
Pettigrew attempted to strangle Harry, but momentarily slackened his grip when Harry reminded him of his life debt, and was killed for it by the silver hand made for him by Voldemort. Hermione learned about his death after the battle.
Bill is viciously mauled by the werewolf, Fenrir Greyback. Fortunately, as Fenrir was not transformed at the time, Bill did not become a werewolf, though Madam Pomfrey is unable to completely heal his face, and he remains permanently scarred.
However, when Bill Weasley was attacked by Greyback, he avoided the perils of becoming a werewolf because it wasn't a full moon. Greyback simply left Bill significantly scarred and with a new appreciation for rare steaks.
After being on the run from a bunch of Snatchers, the gang were taken to Malfoy Manor, where Bellatrix proceeded to torture Hermione using the Cruciatus Curse. It was a testament to Hermione's toughness that she was able to walk away without lasting damage.
On 2 May 1998, Tonks fought in the Battle of Hogwarts and was finally murdered by Bellatrix Lestrange, her maternal aunt and a Death Eater, a devoted servant of Lord Voldemort. Her murder was avenged by her order colleague and friend Molly Weasley.
Sirius Black had a lot of love in his life. Mainly for his best friends but still. One of the greatest loves came not from his connection to James Potter but rather with his relationship to Remus Lupin. The two had an interesting dynamic and one that fans seemed to gravitate towards.
It turns out (naturally) that Sirius was framed, and even after their twelve-year separation he and Lupin remain fiercely devoted to each other. By book 5, the two of them are living together in secret.
Ron, Harry, and Hermione assume she is upset over Sirius' death, and Harry even suggests that Tonks may have been in love with him, which is why she's so crestfallen. It is only at the end of the book that we find that it is Lupin, rather than Sirius, who is the object of her affections.
James isn't motivated by anything much in attacking Snape in this way; he does it because he's bored, because he can, and because he wants to show off to some admiring girls, including Harry's mother, Lily. Harry is deeply disturbed by witnessing Snape's worst memory.
The short answer is no. While yes Snape did gash the side of James' face, Sectumsempra is a far deadlier curse. When Harry used the hex in The Half-Blood Prince, Draco collapsed onto the floor, and severely bleed through his face and chest.
A Professor at Hogwarts School of Witchcraft and Wizardry, Snape is hostile to Harry due to his resemblance to his father James Potter, who bullied Snape during their time together at Hogwarts. As the series progresses, Snape's character becomes more layered and enigmatic.
Despite his skills, the Irish side were too good for the Bulgarians, and Viktor decided to end the match by catching the Golden Snitch. During his pursuit of the Snitch, he was hit in the face by a Bludger which broke his nose and gave him two black eyes.
It turns out later that Krum was being controlled at the time by Barty Crouch Jr. using the Imperius curse.
Draco Malfoy's mother Narcissa was cold, cunning and devoted to the Dark Lord. But she was also a mother, which meant she was willing to risk everything to make sure her son was safe. When Harry survived Voldemort's Killing Curse for the second time, Narcissa pretended he was dead so she could get to Draco.