"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 hardly the only holiday featured in the program.
Of course, when new attractions were opened, Disneyland frequently created their own unofficial holiday, such as "Gala Day", when three new attractions, the Matterhorn, the Monorail, and the original submarine voyage opened in Tomorrowland in 1959.
But 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 (in 1958), on Easter the year this was made (1962), "Around the World in 80 Days" was celebrated with the releasing of a balloon from around that vintage.
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 it's kind in this country.
Also, on two occasions, you'll notice a thin man with glasses with kids (probably his family) enter Walt Disney's host segments. That's none other than Olan Soule, who's probably best remembered for voicing Batman in various cartoon shows, most notably the Super Friends, from 1968-'83. You can probably tell from the voice.