study rabbit holes

While reading the SAS 9 Base Certification Exam prep book, I came across a section that mentioned how SAS can correctly represent dates from 1582 A.D. to 20,000 A.D.

And I thought to myself “1582, that’s kind of a random year. I bet that’s the year the Gregorian calendar was adopted.”

*quick Wikipedia search*

Why yes, it is.

*eyes drawn to more Wikipedia info… click… click…*

How did I not know that “common year” was the opposite of “leap year”?

What is a “papal bull”?

*30 minutes later*

This is not going to help me on the SAS exam.