On this day in history, in 1460, Richard-Of-The-Grand-Old-Duke-Of-York (who didn't have 10,000 men, only about 8,000) marched his men up a hill, down a hill, then right back up the hill, and went too far, so came down a bit, and a bit more. After many hours, he finally decided they were at the half-way point. And died.
Soon after, a rainbow appeared and he came back to life, briefly, to ask his trusted friend, the unicorn, to remember him every time she saw a rainbow.
This is why we now remember the colours of the rainbow using the mnemonic Richard-Of-York-Gave-Battle-In-Vain (Red-Orange-Yellow-Groot-Bilbo-Indigo-Viagra).
