Indigo
Science, Commerce, and Why Indigo is not a Color.
Indigo is a pigment, not a color.
17th Century
Tulips
Tulipmania was not irrational.
In February 1637, the Dutch futures market had a reset on all outstanding contracts for tulips. The prices had reportedly been growing an unprecedented rate, and there was risk of systemic collapse of defaulted contracts.
Witches
Melancholic Witches & Blue Devils
How the color blue became associated with depression.
Shakespeare
Much a-blue about nothing
An incomplete newsletter about William Shakespeare and the color blue.
sunflowers
A Flower by Any Other Name Wouldn't Be As Golden
A follow-up to last week's newsletter about Vincent van Gogh and sunflowers.
Black
17th century English Puritans were the original Black Sheep
An update and correction to last week's newsletter.