The ice age was a chilling era to be born in. Over time, travelers explored different continents and discovered new places. At the time, there were several groups of nomandic Asian hunters searching for new lands. They ended up discovering the entire American content via a land bridge that served to connect Siberia to Alaska. This allowed the nomandic Asian hunters to set foot on American soil and the land of the free was discovered.
The hunters went on to discover other lands. They usually travelled in small groups as they lacked the ability to build large rafts at the time.