Some 29 footprints, going back more than 13,000 years, were found on Calvert Island in British Columbia, Canada, archaeologists reported in March. Analysis reveals that these footprints were left by 3 individuals, among whom was a kid and 2 others who might have been grownups. All 3 were barefoot at the time they left the footprints.

The footprints were maintained for so long since the people were strolling on damp clay that in time ended up being solidified and filled with sand, archaeologists discovered. A percentage of wood discovered with the footprints permitted researchers to run radiocarbon dating on the prints, exposing they were produced at some point in between 13,300 and 13,000 years back.

The 3 individuals who left the footprints might have been disembarking from a canoe and strolling inland towards a drier location. The conservation of the footprints was so great that scientists might designate contemporary U.S. shoe sizes to them– one was a junior size 8, another a junior size 1 or a lady’s size 3 and another a lady’s size 8 or a guy’s size 7. [Read more about North America’s oldest footprints]