How to plan a birthday party at disneyland california?

The Wikipedia entry for Disneyland provides details about its location in Anaheim, California, its opening date of July 17, 1955, and the fact that it was the first theme park built by the Walt Disney Company under Walt Disney's direct supervision. It explains how Disney purchased a 160‑acre site and hired a creative team to design the park. No information is given about birthday parties, party packages, or event planning. To plan a birthday celebration at Disneyland, you would need to consult the park’s official website, customer service, or authorized travel agencies for up-to-date details on party options, reservations, and policies.