Early movies relied heavily on the photographic trick of forced perspective to keep sets affordable; the actors were filmed standing far in front of half scale or smaller model sets that, thanks to forced perspective, looked full size.
Rainbows are circular, but unless you’re in a plane looking directly down upon it, you’ll only be able to see a partial arc of the total rainbow.
Area code assignment was influenced by the rotary phone. Big cities like New York and Los Angeles received numbers that required less effort to dial, while less populous cities like Anchorage received numbers that took longer to dial.
The Green Bay Packers football team is named after the Indian Packing Company which, in 1919, gave the team $500 to purchase their equipment.