Complex sentence: Salvador Fidalgo y Lopegarcía (6 August 1756--27 September 1803) was a Spanish explorer who commanded an exploring expedition for Spain to Alaska and the Pacific Northwest during the late 18th century.
Split into simpler sentences: Salvador Fidalgo y Lopegarcía (6 August 1756--27 September 1803) was a Spanish explorer. He commanded an exploring expedition for Spain to Alaska and the Pacific Northwest during the late 18th century.