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Library of Congress

16 Vintage Photos of Labor Day Celebrations

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Library of Congress

While most of us now celebrate Labor Day with barbecues or end-of-summer vacations, the holiday was originally much more focused on labor unions and was meant to celebrate the economic and social contribution of blue collar workers. In fact, the holiday was only made a federal celebration in 1894 in an attempt to placate labor unions after the famous Pullman Strike, which resulted in 30 deaths. This labor-centric meaning is particularly apparent when looking at vintage photos of the holiday like these, which are courtesy of the Library of Congress.

1. Parades Galore

Original documents aiming to establish Labor Day as a holiday called for a parade that would be followed by family-friendly festivities. As a result, parades were a huge part of the celebrations during the early days of the holiday as you can see in the top picture from the Fireman’s Labor Day Parade from 1929.

2. Unions Uniting

Not only were the unions a big part of the reason the holiday was created, but they continued to be a big part of the celebrations for years to come. In fact, many of the early parades were made up largely of groups of different local union workers, like the Women’s Auxiliary Typographical Union pictured here in 1909.

3. Fundraising for Strikers

The parades also provided unions with a good opportunity to raise funds to support striking union workers, like this man was doing on behalf of the Furriers Union in 1915.

4. Fun and Games

Of course, like modern parades, there were still plenty of fun sources of entertainment for kids. These four clowns, for example, were happy to amuse the crowd in the Silverton, Colorado parade of 1940.

5. The Band Marches On

Similarly, even a small silver mining town like Silverton, Colorado had a high school marching band present to bring a little marching music to the parade, as you can see in this 1940 image by Russell Lee.

6. The Float with the Most

As the years wore on, the floats got more elaborate and the parades started attracting larger crowds as well. Here’s a group that was fortunate enough to have balcony seating for the 1940 Labor Day Parade in Du Bois, Pennsylvania, as photographed by Jack Delano.

7. Patriots Unite

When WWII rolled around, the unions continued to provide floats for the parades, but they focused their float themes on patriotism and winning the war. In 1942, photographer Arthur S. Siegel captured the Detroit Local 600 of the Congress of Industrial Organizations showing their electrical workers electrocuting Hitler.

8. Outhouse HQ

Even the clowns at that 1942 Detroit parade had it out for Hitler, showing his headquarters were holed up inside of an outhouse all while promoting bonds to support the war effort. Photograph by Arthur S. Siegel.

9. Raise the Flag

Even in the midst of electrocutions and outhouses though, the Detroit parade still made a place for this adorable little girl with her American flag to show her support for the war effort and Labor Day festivities. Image taken in 1942 by Arthur S. Siegel.

10. Contests for Kids

As for those family-friendly festivities, well, those varied from location to location, although classic picnic games like potato sack races seemed to be pretty popular across the board. I don’t know who won this particular race shot in 1940 by Russell Lee in Ridgeway, Colorado, but I’d put my money on the big kid on the left.

11. Kiddie Rides

Depending on the size of the festival, some places would even put up fun carnival rides for the kids. I particularly love this picture of a tiny miner from Silverton, Colorado, taken by Russell Lee in 1940.

12. Family Togetherness

The best part of the Labor Day past and present might just be families getting to spend a nice weekend together, like these miners enjoying the holiday with their youngsters back in 1942. Photo taken in Silverton, Colorado by Russell Lee.

13. Friendly Competition

Not everyone put away their tools on Labor Day. In fact, the miners of Silverton actually competed to show off who was the best driller. Here’s one participant hand drilling on a massive boulder, as photographed by Russell Lee.

14. Racing the Day Away

Of course, while many people enjoyed watching contests on Labor Day, most didn’t want to work on the holiday. That’s why going to the race track was so popular in Benning, Maryland back in 1916. Labor Day races like this one included both motorcycle and car events.

15. Barbecue for All

While many modern Labor Day celebrations revolve around backyard barbecues, they used to be much larger, community affairs. In fact, this 1940 celebration in Ridgeway, Colorado required dozens of volunteers to prep, cut and serve the massive, free barbecue that fed practically everyone in the whole town. Photo by Russell Lee.

16. Waiting for a Feast

Despite the rain, everyone at the 1940 Ridgeway barbecue seemed grateful to wait in line for such a delicious Labor Day treat, presumably only furthering that feeling of community. Image taken by Russell Lee.

This post originally appeared last year.

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iStock // Ekaterina Minaeva
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technology
Man Buys Two Metric Tons of LEGO Bricks; Sorts Them Via Machine Learning
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iStock // Ekaterina Minaeva

Jacques Mattheij made a small, but awesome, mistake. He went on eBay one evening and bid on a bunch of bulk LEGO brick auctions, then went to sleep. Upon waking, he discovered that he was the high bidder on many, and was now the proud owner of two tons of LEGO bricks. (This is about 4400 pounds.) He wrote, "[L]esson 1: if you win almost all bids you are bidding too high."

Mattheij had noticed that bulk, unsorted bricks sell for something like €10/kilogram, whereas sets are roughly €40/kg and rare parts go for up to €100/kg. Much of the value of the bricks is in their sorting. If he could reduce the entropy of these bins of unsorted bricks, he could make a tidy profit. While many people do this work by hand, the problem is enormous—just the kind of challenge for a computer. Mattheij writes:

There are 38000+ shapes and there are 100+ possible shades of color (you can roughly tell how old someone is by asking them what lego colors they remember from their youth).

In the following months, Mattheij built a proof-of-concept sorting system using, of course, LEGO. He broke the problem down into a series of sub-problems (including "feeding LEGO reliably from a hopper is surprisingly hard," one of those facts of nature that will stymie even the best system design). After tinkering with the prototype at length, he expanded the system to a surprisingly complex system of conveyer belts (powered by a home treadmill), various pieces of cabinetry, and "copious quantities of crazy glue."

Here's a video showing the current system running at low speed:

The key part of the system was running the bricks past a camera paired with a computer running a neural net-based image classifier. That allows the computer (when sufficiently trained on brick images) to recognize bricks and thus categorize them by color, shape, or other parameters. Remember that as bricks pass by, they can be in any orientation, can be dirty, can even be stuck to other pieces. So having a flexible software system is key to recognizing—in a fraction of a second—what a given brick is, in order to sort it out. When a match is found, a jet of compressed air pops the piece off the conveyer belt and into a waiting bin.

After much experimentation, Mattheij rewrote the software (several times in fact) to accomplish a variety of basic tasks. At its core, the system takes images from a webcam and feeds them to a neural network to do the classification. Of course, the neural net needs to be "trained" by showing it lots of images, and telling it what those images represent. Mattheij's breakthrough was allowing the machine to effectively train itself, with guidance: Running pieces through allows the system to take its own photos, make a guess, and build on that guess. As long as Mattheij corrects the incorrect guesses, he ends up with a decent (and self-reinforcing) corpus of training data. As the machine continues running, it can rack up more training, allowing it to recognize a broad variety of pieces on the fly.

Here's another video, focusing on how the pieces move on conveyer belts (running at slow speed so puny humans can follow). You can also see the air jets in action:

In an email interview, Mattheij told Mental Floss that the system currently sorts LEGO bricks into more than 50 categories. It can also be run in a color-sorting mode to bin the parts across 12 color groups. (Thus at present you'd likely do a two-pass sort on the bricks: once for shape, then a separate pass for color.) He continues to refine the system, with a focus on making its recognition abilities faster. At some point down the line, he plans to make the software portion open source. You're on your own as far as building conveyer belts, bins, and so forth.

Check out Mattheij's writeup in two parts for more information. It starts with an overview of the story, followed up with a deep dive on the software. He's also tweeting about the project (among other things). And if you look around a bit, you'll find bulk LEGO brick auctions online—it's definitely a thing!

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© Nintendo
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fun
Nintendo Will Release an $80 Mini SNES in September
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© Nintendo

Retro gamers rejoice: Nintendo just announced that it will be launching a revamped version of its beloved Super Nintendo Classic console, which will allow kids and grown-ups alike to play classic 16-bit games in high-definition.

The new SNES Classic Edition, a miniature version of the original console, comes with an HDMI cable to make it compatible with modern televisions. It also comes pre-loaded with a roster of 21 games, including Super Mario Kart, The Legend of Zelda: A Link to the Past, Donkey Kong Country, and Star Fox 2, an unreleased sequel to the 1993 original.

“While many people from around the world consider the Super NES to be one of the greatest video game systems ever made, many of our younger fans never had a chance to play it,” Doug Bowser, Nintendo's senior vice president of sales and marketing, said in a statement. “With the Super NES Classic Edition, new fans will be introduced to some of the best Nintendo games of all time, while longtime fans can relive some of their favorite retro classics with family and friends.”

The SNES Classic Edition will go on sale on September 29 and retail for $79.99. Nintendo reportedly only plans to manufacture the console “until the end of calendar year 2017,” which means that the competition to get your hands on one will likely be stiff, as anyone who tried to purchase an NES Classic last year will well remember.

In November 2016, Nintendo released a miniature version of its original NES system, which sold out pretty much instantly. After selling 2.3 million units, Nintendo discontinued the NES Classic in April. In a statement to Polygon, the company has pledged to “produce significantly more units of Super NES Classic Edition than we did of NES Classic Edition.”

Nintendo has not yet released information about where gamers will be able to buy the new console, but you may want to start planning to get in line soon.

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