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Welcome to the documentary from the BBC World Service.
I'm Roman Mars.
To mark 250 years since American independence, the BBC has launched a new podcast,
A History of the United States in 100 Objects,
which you'll be able to hear on the BBC World Service starting in October.
For the anniversary, we are bringing you the first episode, The Century Safe.
You can hear more episodes from the series by subscribing
to A History of the United States in 100 Objects wherever you get your BBC podcasts.
It's 1976. The average annual salary in the U.S.
Is just over $9,000.
There is no internet to entertain us.
But Jaws is back in theaters, and Afternoon Delight is burning up the charts.