We saw a similar video of boundary development over the centuries before, but I like this one as a contrast to it. The first is really default-looking, whereas this one has a little bit of production value.
US boundary evolution
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Unemployment in America, Mapped Over Time
Watch the regional changes across the country from 1990 to 2016.
After Marriage, How Long People Wait to Have Kids
First comes love, then comes marriage, then comes baby in the baby carriage. Sometimes.
Working on Tips, by State
What percentage of a waiter and waitress’s income comes from tips and what comes from salary? The calculation isn’t straightforward but we can try.