It's hard to call it "discovered" when the landbridge was still there and they were hunter-gathers (although "settled" is accurate). "Migrated to" maybe? https

It's hard to call it "discovered" when the landbridge was still there and they were hunter-gathers (although "settled" is accurate). "Migrated to" maybe? https://en.wikipedia.org/wiki/Beringia https://en.wikipedia.org/wiki/Beringia