In the 1760s, the British Parliament's passage of the Stamp Act and the Townshend Acts, combined with other frustrations, increased political tension and anger against Britain in the colonies. Philadelphia residents joined boycotts of British goods. After the Tea Act in 1773, there were threats against anyone who would store tea and any ships that brought tea up the Delaware. After the Boston Tea Party, a shipment of tea had arrived in December, on the ship the "Polly". A committee told the captain to depart without unloading his cargo.