During the expansion of the glaciers, humans began to walk across the ice to the Americas through Beringia. Meanwhile, people were able to walk across the ice for a short amount of time to the northern part of Atlantis, called Lionheart. The humans set up villages in Modern-day Lionheart, but wanted to move south. After just 120 years of humans walking to and from Atlantis, the glaciers retreated. The humans in Lionheart established settlements and made their way south to mainland Atlantis.