Complex sentence: Surya Siddhanta was one of the two books in Sanskrit translated in Arabic in the later half of eighth century during the reign of Abbasid Khalifa Almansur, and was one of the first books to be translated during the movement for translating world heritage in Arabic.
Split into simpler sentences: Surya Siddhanta was one of the two books in Sanskrit translated in Arabic in the later half of eighth century during the reign of Abbasid Khalifa Almansur. In fact this was one of the first books to be translated during the movement for translating world heritage in Arabic.