Complex sentence: In 1898, the cape was officially renamed as Cape Dezhnev, replacing Captain James Cook's' East Cape', in honor of Semyon Dezhnyov, the first recorded European to round it (1648).
Split into simpler sentences: In 1898, the cape was officially renamed as Cape Dezhnev, replacing Captain James Cook's name, the "East Cape". It was named in honor of Semyon Dezhnyov, the first recorded European to round its tip (in 1648).