Olives, which grow on trees, were first cultivated 5,000 years ago in Syria.

Mules have one horse and one donkey for a parent.

The Popsicle was invented by 11 year-old Frank Epperson in 1905. He left his drink outside with a stir stick in it and he noticed that it had frozen. He applied for a patent in 1923 and named it "Epsicle." The name was later changed to Popsicle.

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