After the French Revolution, most aristocratic picnickers fled abroad to Britain and introduced the picnic to England. This led to a less refined and more raucous picnic, thanks to a 'Pic Nic Society,' founded by wealthy young Francophiles. Every member was required to bring a dish and six bottles of wine. Dinner was followed by singing, dancing, and gambling.

Picnics were also taken up by the emergent middle classes and moved outdoors. The result that picnicking ceased to be associated with music and dancing and became a simple meal. It became calmer and more innocent.

• In the 19th century, the outdoor picnic spread to the United States but remained an innocent pursuit of the middle classes.
• Outdoor picnics were less well received elsewhere. In France, the legacy of the revolutionary egalitarianism opened the indoor picnic up to lower classes. By the mid- 19th century, even members of the working classes were starting to adopt the practice.
• When outdoor picnics eventually gained traction in France, they were regarded with suspicion. They were not seen as innocent and wholesome, but as decadent and wicked.

In the 20th century, new modes of transport (trains, bicycles, and motor cars) made the countryside accessible to a greater number of the population.

Not long after, their popularity had grown so much that specialist picnic baskets were produced, and the contents became more standardized. Today, olives, focaccia, and white wine are more likely to be found in a picnic basket rather than cold tongue, cress sandwiches, and ginger beer.