Complex sentence: Semyon Dezhnyov (1648) was the first recorded European to pass through the Bering Strait, while Mikhail Gvozdev in 1732 crossed it for the first time, from Asia to America.
Split into simpler sentences: Semyon Dezhnyov (1648) was the first recorded European to pass through the Bering Strait. In 1732 Mikhail Gvozdev crossed it for the first time, from Asia to America.