Severus Snape's father was a muggle and he always fought with Snape's mother. This led to Snape hating his father and therefore muggles. So he believed what Lord Voldemort believed and signed up to help him.
well he did want to be a death eater in the beginning until Voldemort killed lily potter.
cause dumbledor wanted snape to kill him
only if you want him to
Severus Snape asked Lord Voldemort to spare Lily Potter because he loved Lily and didn't want her to die. Dumbledore was disgusted that he didn't care about James or Harry.
He wants to kill him so he could be the "master of the elder wand" (except for the fact that Snape was not ever the master of the elder wand....)
Snape doesn't want or need to get the Philosophers Stone, he is one of the staff protecting it Professor Quirrell wants the stone for his master (Lord Voldemort) He is sharing his body with Lord Voldemort.
Yeah but he is one both sides he wanted to help harry live but instead Voldemort found out and used the crucio curse and killed snape, snape was also a death eater but he liked lily so he didn't want to hurt anyone anymore but he didn't exactly hurt anyone but he did not want voldemort to hurt anyone especially harry,ron,hermione.
Cursus are found for an instance in Harry Potter Severus Snape inventesd the Sectumsempra curse
He didn't want to because that would be more complicated, but he had to. Severus Snape joined the Death Eaters straight out of school. After Lily Evans' life was put in danger he convinced Voldemort he was joining the Order of the Phoenix as a spy for them. In reality, he was spying on the Death Eaters for the Order and only passing on select information to Voldemort. As time went on this information had to get better because Snape became more trusted. Dumbledore let Snape tell Voldemort when Harry was going to be moved to ensure Voldemort still trusted Snape.
I'll name one; people can discuss if they want: Sectumsempra; invented by, non-the-less, Severus Snape.
No. Family made him.
Lord Voldemort believes that Snape is the true master of the Elder Wand because Snape killed Dumbledore. In order to gain the wand's allegiance, he kills Snape. However, Draco Malfoy disarmed Dumbledore before that, so Snape had never been the true master.