10. It is illegal to congregate in a group of two or more in any public place while each wearing a mask that disguises identity
New York Penal Law 240.35(4) prohibits two or more people wearing masks or any face covering from congregating in a public place. The regulation has existed since 1845, and was developed in response to the lowering of wheat prices. At the time, tenant farmers would cover their faces with masks and dress up as “Indians” to attack the police. The exception to this rule, according to Slate, are masquerades and other events like Halloween.