"Holiday Time at Disneyland" is an episode of Walt Disney's Wonderful World of Color.
In this episode, we see that numerous Disneyland attractions over the early years of Disneyland were opened on, or around, official holidays, and although Christmas is the official theme of the episode, complete with a Christmas parade and songs, it's not the only holiday featured in the program.
When new attractions were opened, Disneyland frequently created their own unofficial holidays, such as "Gala Day", when three new attractions, the Matterhorn Bobsleds, the Monorail, and the original Submarine Voyage opened in Tomorrowland in 1959.
Also in this program, we see that the Columbia, a replica of the first American ship to go around the world, was christened on July 4, 1958, and on Easter 1962, "Around the World in 80 Days" was celebrated with the releasing of a balloon from around that time period.
The place at Disneyland most prominently featured in this program was Main Street, U.S.A., where all Disneyland parades begin, even an old-time circus parade, which was considered one of the last of its kind in this country.