Luluwa (also Aclima) according to some religious traditions was the oldest daughter of Adam and Eve, the twin sister of Cain and wife of Abel. According to these traditions, she was the first female human who was born naturally. According to Islamic and rabbinic tradition, a marriage between Luluwa and Abel was proposed and arranged by their father Adam. In order to commence contentment from Luluwa's twin brother, Adam (their father) suggested that a sacrifice be made, yet sacrifice was subsequently rejected by God. The reason behind the commotion was that Cain viewed Luluwa as being aesthetically more attractive than Awan. The subsequent friction between Abel and Cain meant to Luluwa was the primary cause of the world's first murder (per Abrahamic traditions).