On July 17, 1955, Disneyland opened in Anaheim, California. Walt Disney introduced a theme park that combined storytelling, rides, and immersive environments. Opening day faced logistical challenges, including overcrowding and plumbing issues. Despite early problems, Disneyland quickly became a cultural phenomenon. It set new standards for theme park design and guest experience. Disneyland remains one of the most visited attractions in the world.