Just the other day, I asked my seven-year-old grandson Bradley if he knew what a turntable was, and then I hit him with, "Have you ever seen a cassette tape?" Of course, he had no clue but remained curious about these old-timey inventions, especially when I told him both of these classic contraptions played music.

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My 4-year-old granddaughter, Winnie, only knows that when she tells Alexa to play Shakira's "Waka Waka," it instantly begins to play. This is why I decided to write this article so I could show them some of the prehistoric inventions I used growing up.

Vintage Gadgets and Other Stuff Your Kids Will Never Understand

LOOK: Here are the best lake towns to live in

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LOOK: 20 Fascinating Photos From the First Modern Olympic Games in 1896

To celebrate the history of international sports cooperation, Stacker took a look back at that groundbreaking event in Athens, when the modern Olympics were born in 1896. Keep reading to learn more about the athletes, spectators, and sports at that iconic event.