This weekend is National Cheeseburger Day, and there's only one such holiday. But if you ask where the cheeseburger came from, there are a couple answers. Plus: for National Pet Bird Day, a story from 2017 in which researchers found wild birds in Australia swearing.
Who Invented the All-American Cheeseburger? (The Spruce Eats)
Plaque commemorating invention of the cheeseburger in Pasadena dedicated at LA Financial Credit Union (Pasadena Chamber of Commerce)
Birds that escape from captivity teach wild birds how to speak (and swear) in English (Inhabitat)
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