Students will remember the mnemonic device Roy G. Biv, I hope.
So if we think of the rainbow as containing 7 colors, what did people think in medieval times? If most of Europe didn’t eat oranges until the end of the 15th century, what did they call the color between red and yellow?
Read this British doctoral student’s short research report to find out what she discovered:
But I like the way she ends her research report:
“It seems that there are as many colours in the rainbow as we are prepared to see.”