What did maleficent do to sleeping beauty?

In Disney's "Sleeping Beauty," Maleficent, the evil fairy, curses Princess Aurora to fall into a deep sleep on her sixteenth birthday after being snubbed from the royal celebration. The curse states that she will prick her finger on a spinning wheel and fall into an eternal slumber, only to be awakened by true love's kiss. Maleficent's actions drive the story, as the kingdom tries to protect Aurora from her fate. Ultimately, it is Prince Phillip's kiss that breaks the curse and awakens her.