Folks have already pointed out the whole “multiple teams of sled dogs” thing.

The dogs also weren’t delivering vaccine. They were delivering diphtheria antitoxin, which is a treatment for diphtheria, not an inoculation. The kids were already sick.

There was technically a vaccine for diphtheria then (it was invented in 1923, two years before this epidemic), but it wouldn’t have saved anyone who’d already caught the infection.

Of course, this works with pretty much any dried legume. Split pea and bean soup, bean chili, smokey red beans.

Dried chickpeas cook up nicely in the slow cooker. No need to pre-soak, just add enough liquid to cover them well, e.g. any combination of water, vegetable broth, coconut milk, canned tomatoes, plus whatever aromatics and spices you like! Onion, garlic, peppers, lemon peel, tumeric, curry paste, etc.

Cook on low for 4-8 hours - you’ll need to dial in your specific slow cooker at first, but you’ll get the hang of it. Chickpeas won’t be ruined by an extra hour or two.

You can add in other pantry staples as well - split peas, dried fruits, lentils. Makes a ton of food, especially if you serve over rice.