Complex sentence: Luigi Maria D'Albertis (november 21 1841-september 2 1901) was a flamboyant Italian naturalist and explorer who in 1876 became the first person to chart the Fly River in Papua New Guinea.
Split into simpler sentences: Luigi Maria D'Albertis (november 21 1841-september 2 1901) was an Italian naturalist and explorer. He was the first person to chart the Fly River in Papua New Guinea.