Happy Evacuation Day to all the Bostonians and Cantabrigians out there!

For the uninitiated, Evacuation Day is a public holiday celebrating the retreat of British forces from Boston during the Revolutionary War. It is a completely serious, totally not-made-up holiday; the fact that it falls on St. Patrick’s day, allowing your public servants to spend their day off bending their elbows at their respective local pubs, is totally coincidental, and anyone who suggests otherwise is probably high on triphenylmethane (green dye #3, ingested with St. Patrick’s Day beer).