This website isn’t as straightforward as you would think. Once you input your information, you should scroll and read through all the information on the results page.
Everyone who takes a minute to do more than a cursory glance has discovered something new.
One thing that I find informative is how the results compare an event in the past to your birthday, versus your birthday to present day. It compresses time into a surprisingly narrow and rapid series of events.
For me, it was interesting to think about time in gaps. For example, in 1976, the US’ 200th birthday, I was only 9 years old, but I remember hearing about WWII, thinking it was ancient history. But for those telling the stories, it was less than 30 years before, a long generation. From 1976 until now is much more time than from when I was 9 back to WWII. It adds an almost hidden element to time. Our memories both compress and elongate history.