On June 11th 1837, the Broad Street Riot broke out in Boston, Massachusetts, between Irish immigrants and existing American citizens known as Yankees.

Just a few months later the First Continental Congress convened in Philadelphia, uniting the colonies in the face of increasingly oppressive British rule.

Despite a reward of $10 million, and extensive investigations by the FBI, none of the works have ever been recovered and nobody has ever been arrested for the robbery.

The British government had passed the Tea Act seven months earlier on 10 May, partly in an attempt to support the struggling East India Company.