Complex sentence: The last sultan, Husayn ibn Abd Allah Al Wahidi, was deposed and the state was abolished in 1967 upon the founding of the People's Republic of South Yemen and the area is now part of the Republic of Yemen.
Split into simpler sentences: The last sultan, Husayn ibn Abd Allah Al Wahidi, was deposed and the state was abolished in 1967 upon the founding of the People's Republic of South Yemen. The area is now part of the Republic of Yemen.