math
An Etymology of Pie
Featuring shapes, colors, pastries, mathematicians, birds, and priests.
Black
Holiday
The Dark Irony of Black Friday
"Black Friday" (the shopping day) may have inadvertedly borrowed its name from another Black Friday (November 22, 1963).
Black
17th century English Puritans were the original Black Sheep
An update and correction to last week's newsletter.
Black
Bah, Black Sheep.
Spoiler alert: The little boy in the song was Cupid.
Welsh
Why I Learned Lliwiau (colors) in Cymraeg (Welsh)
Or: A very basic introduction to Welsh color words by someone who doesn't speak the language, yet.
Black
The Chinese (India) Ink Story
or "How reliance on advances in technology impedes innovation."