Per Gun-Grabbers, April 19 Commemorates Armed Citizen ‘Treason’ against Government
https://www.ammoland.com/2017/04/per-gun-grabbers-april-19-commemorates-armed-citizen-treason-against-government/#ixzz4eqhVIDYg
A little more detail
http://www.u-s-history.com/pages/h654.html