When did hen and stag parties start?

Hen and stag parties, also known as bachelorette and bachelor parties, have origins that trace back to ancient times. The modern concept emerged in the 20th century, particularly in the 1960s and 1970s, as social norms around marriage and celebrations evolved. These parties became popular as a way for friends to celebrate impending marriages with a final night of freedom. Today, they are common traditions in many cultures, often featuring elaborate events and activities.