Keys to the city

The Freedom of the City is an honour bestowed by a municipality upon a valued member of the community, or upon a visiting celebrity or dignitary. Arising from the medieval practice of granting respected citizens freedom from serfdom, the tradition still lives on in countries such as the United Kingdom, Ireland, Australia, Canada, South Africa and New Zealand – although today the title of "freeman" confers no special privileges. The Freedom of the City can also be granted by municipal authorities to military units which have earned the city's trust; in this context, it is sometimes called the Freedom of Entry. This allows them the freedom to parade through the city, and is an affirmation of the bond between the regiment and the citizenry.

The honor was sometimes accompanied by a "freedom box", a small gold box inscribed to record the occasion; these are not usual today. In some countries, such as the United States, esteemed residents and visitors may instead be presented with the Key to the City, a similarly symbolic honor. Other cities award Honorary Citizenship, with just a certificate.

Freedom of the City is an ancient honor granted to martial organisations, allowing them the privilege to march into the city "with drums beating, colours flying, and bayonets fixed".

This honor dates back to ancient Rome which regarded the "pomerium", the boundary of the city, as sacred. Promagistrates and generals were forbidden from entering it, and resigned their imperium immediately upon crossing it. An exception was made for victory celebrations (called triumphs), during which the victorious general would be permitted to enter for one day only. Under the Republic, soldiers also lost their status when entering, becoming citizens: thus soldiers at their general's triumph wore civilian dress. Weapons were also banned inside the pomerium for religious and traditional reasons. (The assassination of Julius Caesar occurred outside this boundary.)

Similar laws were passed by other European cities throughout the Medieval era, to protect public security and civic rights, even against their own king's troops. As a result, soldiers would be forced to camp outside the walls of the city during the winter months. The Freedom of the City was an honor granted only to troops which had earned the trust of the local populace, either through some valiant action or simply by being a familiar presence.

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Wikipedia