They didn't; it was Dumbledore's plan. Snape agreed to go along.
As for the reasons:
As for the reasons:
As for the reasons:
As for the reasons:
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Because Snape was meant to pass this information to Harry.
Why him? Two reasons:
1. Dumbledore knew he was going to die soon
2. Dumbledore wasn't a man enough to tell it to Harry personally
They didn't; it was Dumbledore's plan. Snape agreed to go along.
As for the reasons:
So Harry would not interfere in the plan Snape and Dumbledore had agreed on.
he gives him a container filled with all the important memories of Snape's that he (Snape) thinks will be useful to Harry, or explain things more clearly. They (mostly) revolve around Snape and Lily (Potter's Mum) starting from childhood right up to the time that Lily dies and the discussion that followed (with Dumbledore) after. It explains to Harry that even before Harry came to Hogwart's Snape was trying to help him, acting as spy for Dumbledore. Snape loved Lily so much that he protected her only son by spying even though he could have died because of it. It also explains to Harry that he (Harry) must die at Voldemort's hand to destroy the seventh Horcrux (himself).
Draco was the actual master of the elder wand because Dumbledore's death was already planned, so when Snape killed him, it wasn't actually a takeover of the wand. Because Draco was the last to disarm Dumbledore, or 'take' his wand, it recognized Draco as it's master. This is how Voldemort was ultimately killed, because Harry was using Draco's original wand. The elder wand recognized the wand as its master's, so Voldemort's killing curse was turned back upon him. However, Draco never actually had the Elder Wand in his possession. He never even knew he was the master until Harry revealed it.
At the end of Harry potter and the Half-Blood Prince Dumbledore dies Snape goes to the dark side and Harry and Ginny kiss. Hermione gets jealous of Ron and lavender being together.---- this is incorrect , the story you have provided is for Harry Potter & the half blood prince the last movie is deathly hallows in which voldemort eventually dies & is about harry searching for horcruxes
Peter was supposed to kill Harry Potter in Malfoy Manor, as Harry was trying to escape, however he hesitated and his own silver hand, given to him in Goblet of Fire by Voldemort, strangled him to death because he showed weakness.