Complex sentence: He is also generally considered to have been a "pioneer" of desert exploration, an acclaim earned for his activities during the 1930s, activities which included the first recorded east-west crossing of the Libyan Desert (1932).
Split into simpler sentences: He is also generally considered to have been a "pioneer" of desert exploration, an acclaim earned for his activities during the 1930s. These included the first recorded east-west crossing of the Libyan Desert (1932).