As far back as 2,000 to 4,000 years ago, an early European trekking through the Swiss Alps likely lost their lunch.

A small, wooden, circular-shaped box for carrying food was discovered in 2012 in a more than 8,000-foot high summit in Switzerland's western Bernese Alps. At the time of the dig, the site yielded a number of artifacts—glaciers rapidly receding from warming temperatures revealed objects that had not been used by humans for thousands of years. (Read about the Swiss couple found frozen in a glacier 75 years after they went missing.)

When it was found, the box did little to stand out from the collection of artifacts found, but further testing has now revealed the small box contains big insights