In the future -- or the past

The blog Wait but Why has an interesting discussion of how far the past can seem to people of today, depending on how old they are.

Some excerpts:

So here are some New Years 2020 time facts:

When World War 2 started, the Civil War felt as far away to Americans as WW2 feels to us now.

Speaking of World War 2, the world wars were pretty close together. If World War 2 were starting today, World War 1 would feel about as far back to us as 9/11.

The Soviet Union break up is now as distant a memory as JFK’s assassination was when the Soviet Union broke up.

[It's] worth mentioning that my 94-year-old grandmother was born closer to the Andrew Jackson administration than to today. [Me:  that hardly seems possible but I did the arithmetic!]

 If you were born in the 1980s like me, a kid today who’s the age you were in 1990 is a full 30-year generation younger than you. They’ll remember Obama’s presidency the way you remember Reagan’s. 9/11 to them is the moon landing for you. The 90s seem as ancient to them as the 60s seem to you. To you, the 70s are just a little before your time—that’s how they think of the 2000s. They see the 70s how you see the 40s. And the hippy 60s seems as old to them as the Great Depression seems to you.