A pair of fishermen waded out into the near frozen waters of the Southern Baltic Sea about 5,000 years ago. When they returned to the land they brought with them a meal or two for their families. But they did not just take something out of the water; they also left something behind.
This is what archaeologists discovered in a dried up fjord on the island of Lolland in Denmark. Actually, they discovered sets of footprints as well as various kinds of Stone Age fishing gear which includes something called a “fishing-fence’—a prehistoric tool that dates back to roughly 3,000 B.C.