(CNN) Macy's Thanksgiving Day Parade has been a tradition for decades -- not only for New York City but for a TV-watching nation as well. And it's amassed quite an interesting history in that time.
Because of the Covid-19 pandemic, the 2020 version will be making some unfortunate history of its own. The parade is still being staged for television audiences on NBC from 9 a.m. to noon Thursday in all time zones.
But this year, New York officials can't allow the millions who traditionally line the Manhattan parade route to gather. Instead, the parade will be held in a relatively small area near Macy's flagship store at Herald Square and limited only to participants.
With news of potential vaccines on the near horizon, hopes are high the 2021 parade might be able to return to standard practice.
Meanwhile, let's look back at five historical facts about the parade that no pandemic can change and at a bunch of pictures and video (above) from parades past:
The original store was about 20 blocks south on Sixth Avenue near 14th Street. Macy's has been at its current flagship location, at Broadway and 34th Street, since 1902. Continuing expansion made the location what Macy's called the "world's largest store," an entire city block with more than 1 million square feet of retail space.
In celebration, employees organized a Christmas parade in 1924 featuring "floats, bands, animals from the zoo and 10,000 onlookers," according to a Macy's history page. It also started way up at 145th Street. The parade concluded with Santa Claus and the unveiling of the store's Christmas windows. Three years later, the Christmas Parade was renamed the Thanksgiving Day Parade.
Macy's didn't invent the practice. Philadelphia has the oldest Thanksgiving Day parade: Its Gimbels Thanksgiving Day Parade, now the 6ABC - Dunkin' Donuts Thanksgiving Day Parade, debuted in 1920.
You had to use your imagination when the first broadcasts of the parade took place in 1932; they were on the radio. The parade was first televised in 1946 in New York and then nationally on NBC the next year.
According to Mental Floss, the balloon attractions debuted in 1927, inspired by a balloon float. Even then, they were massive -- one was a 60-foot dinosaur -- and, in those days, they had more to deal with than just high winds and crazy weather: Until 1938, an elevated train ran down Sixth Avenue.
Well-known characters have been part of the parade since that 1927 outing. Felix the Cat was there from the beginning, and Mickey Mouse joined in 1934, the same year that featured a balloon based on popular entertainer Eddie Cantor. "Peanuts" characters, especially Snoopy -- who made his first appearance in 1968 -- are regular visitors.
One tradition didn't last long. The balloons were originally allowed to float away, and those who found them got a gift certificate from Macy's.
For years, the parade's Midtown route went right down Broadway, Manhattan's spine. But in 2009, the route was moved to Seventh Avenue because of new pedestrian plazas along Broadway. It was changed to Sixth Avenue in 2011. Given the parade's draw as a tourist attraction, this did not go over well with some folks.
For 2019, the route started at 77th Street and Central Park West, where it took a left turn at 59th Street. It continued to ride past Central Park until reached Sixth Avenue. From there, it will headed down straight down to 34th Street, where it hung a right and end at the flagship store.
And because of the pandemic, 2020 will see the very shortened only-for-TV route near the flagship store.
In 1957, a wet day got wetter for people near a Popeye balloon: The character's hat filled with water and drenched parade watchers. The same thing happened in 1962 with a Donald Duck hat.
Superman once lost his arm to tree branches.
But the worst was probably 1997, a blustery day in the Big Apple. During that parade, winds reached more than 40 miles per hour, and the balloons were difficult to control. One balloon struck a lamppost and injured four people; one woman was in a coma for a month. The Pink Panther threatened a woman holding its ropes.
"The balloon was caught on top of me and my daughter," she told The New York Times. "We thought it was going to smother us."
CNN's Forrest Brown contributed 2020 information to this article.