Campfires Mean a Lot

Found: The Charred Remains of a 170,000-Year-Old Meal in a South African Cave
at Atlas Obscura.  A key passage from the article:

Besides being a great source of carbohydrates, the plant would also have served a community-building function for the residents of Border cave.  "I consider the sharing process at the cave an important social factor," Wadley says.  "The rhizomes could easily have been cooked an eaten in the field where they were collected, but the gatherers took the trouble to return them to the home base."

To this day, we humans save up vacation time to go sit around campfires and char food.  Some things never change.  Of course, the big advance is that when the weather is bad or we're sick, a dry house and a microwave oven are options close at hand.